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US 2004/0110762 A1Published application
Tricyclic protein kinase inhibitors
AssigneeWyeth
InventorsDan M. Berger, Minu D. Dutia, Frenel F. DeMorin, Diane H. Boschelli, Dennis W. Powell, Hwei-Ru Tsou, Allan Wissner, Nan Zhang, Fei Ye, Biqi Wu
Life of this patent
Estimating the term…
Abstract
This invention provides compounds of formula 1, having the structure 1 which are useful as inhibitors of protein tyrosine kinase and are antiproliferative agents.
Claims35
A compound of formula 1 having the structure:
- 102
- wherein:
- Ar is cycloalkyl of 3 to 7 carbon atoms, which may be optionally substituted with one or more alkyl of 1 to 6 carbon atoms;
- or
- Ar is a pyridinyl, pyrimidinyl, or phenyl ring;
- wherein the pyridinyl, pyrimidinyl, or phenyl ring may be optionally mono-, di-, or tri-substituted with substituent(s) independently selected from the group consisting of halogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, azido, hydroxyalkyl of 1-6 carbon atoms, halomethyl, alkoxymethyl of 2-7 carbon atoms, alkanoyloxymethyl of 2-7 carbon atoms, alkoxy of 1-6 carbon atoms, alkylthio of 1-6 carbon atoms, hydroxy, trifluoromethyl, cyano, nitro, carboxy, alkoxycarbonyl of 2-7 carbon atoms, alkanoyl of 2-7 carbon atoms, benzoyl, amino, alkylamino of 1-6 carbon atoms, dialkylamino of 2 to 12 carbon atoms, alkanoylamino of 1-6 carbon atoms, alkenoylamino of 3-8 carbon atoms, alkynoylamino of 3-8 carbon atoms, alkanoyloxy of 1-6 carbon atoms, alkenoyloxy of 3-8 carbon atoms, alkynoyloxy of 3-8 carbon atoms, carbamoyl, N-alkylcarbamoyl of 2-7 carbon atoms, N,N-dialkylcarbamoyl of 3-13 carbon atoms, carboxyalkyl of 2-7 carbon atoms, carboalkoxyalkyl of 3-8 carbon atoms, aminoalkyl of 1-5 carbon atoms, N-alkylaminoalkyl of 2-9 carbon atoms, N,N-dialkylaminoalkyl of 3-10 carbon atoms, N-alkylaminoalkoxy of 3-9 carbon atoms, N,N-dialkylaminoalkoxy of 4-10 carbon atoms, mercapto, methylmercapto and benzoylamino;
- or
- Ar is a bicyclic aryl or bicyclic heteroaryl ring system of 8 to 12 atoms where the bicyclic heteroaryl ring may contain 1 to 4 heteroatoms selected from N, O, and S wherein the bicyclic aryl or bicyclic heteroaryl ring may be optionally mono- di-, tri, or tetra-substituted with substituent(s) independently selected from the group consisting of halogen, oxo, thiocarbonyl, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, azido, hydroxyalkyl of 1-6 carbon atoms, halomethyl, alkoxymethyl of 2-7 carbon atoms, alkanoyloxymethyl of 2-7 carbon atoms, alkoxy of 1-6 carbon atoms, alkylthio of 1-6 carbon atoms, hydroxy, trifluoromethyl, cyano, nitro, carboxy, alkoxycarbonyl of 2-7 carbon atoms, alkanoyl of 2-7 carbon atoms, phenoxy, phenyl, thiophenoxy, benzoyl, benzyl, amino, alkylamino of 1-6 carbon atoms, dialkylamino of 2 to 12 carbon atoms, phenylamino, benzylamino, alkanoylamino of 1-6 carbon atoms, alkenoylamino of 3-8 carbon atoms, alkynoylamino of 3-8 carbon atoms, carboxyalkyl of 2-7 carbon atoms, carboalkoxyalkyl of 3-8 carbon atoms, aminoalkyl of 1-5 carbon atoms, N-alkylaminoalkyl of 2-9 carbon atoms, N,N-dialkylaminoalkyl of 3-10 carbon atoms, N-alkylaminoalkoxy of 3-9 carbon atoms, N,N-dialkylaminoalkoxy of 4-10 carbon atoms, mercapto, methylmercapto, alkanoyloxy of 1-6 carbon atoms, alkenoyloxy of 3-8 carbon atoms, alkynoyloxy of 3-8 carbon atoms, carbamoyl, N-alkylcarbamoyl of 2-7 carbon atoms, N,N-dialkylcarbamoyl of 3-13 carbon atoms, and benzoylamino;
- or
- Ar is the radical:
- 103
- A′ is a pyridinyl, pyrimidinyl, or phenyl ring;
- wherein the pyridinyl, pyrimidinyl, or phenyl ring may be optionally mono- or di-substituted with a substituent(s) independently selected from the group consisting of alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, azido, hydroxyalkyl of 1-6 carbon atoms, halogen, halomethyl, alkoxymethyl of 2-7 carbon atoms, alkanoyloxymethyl of 2-7 carbon atoms, alkoxy of 1-6 carbon atoms, alkylthio of 1-6 carbon atoms, hydroxy, trifluoromethyl, cyano, nitro, carboxy, alkoxycarbonyl of 2-7 carbon atoms, alkanoyl of 2-7 carbon atoms, phenoxy, phenyl, thiophenoxy, benzoyl, benzyl, amino, alkylamino of 1-6 carbon atoms, dialkylamino of 2 to 12 carbon atoms, phenylamino, benzylamino, alkanoylamino of 1-6 carbon atoms, alkenoylamino of 3-8 carbon atoms, alkynoylamino of 3-8 carbon atoms, carboxyalkyl of 2-7 carbon atoms, carboalkoxyalkyl of 3-8 carbon atoms, aminoalkyl of 1-5 carbon atoms, N-alkylaminoalkyl of 2-9 carbon atoms, N,N-dialkylaminoalkyl of 3-10 carbon atoms, N-alkylaminoalkoxy of 3-9 carbon atoms, N,N-dialkylaminoalkoxy of 4-10 carbon atoms, mercapto, methylmercapto, alkanoyloxy of 1-6 carbon atoms, alkenoyloxy of 3-8 carbon atoms, alkynoyloxy of 3-8 carbon atoms, carbamoyl, N-alkylcarbamoyl of 2-7 carbon atoms, N,N-dialkylcarbamoyl of 3-13 carbon atoms, and benzoylamino;
- T is substituted on A′ at carbon and is —NH(CH2)m—, —O(CH2)m—, —S(CH2)m—, —NR(CH2)m—, —(CH2)m—, —(CH2)mNH—, —(CH2)mO—, —(CH2)mS—, —SO(CH2)m—, —SO2(CH2)m—, —CO(CH2)m—, —(CH2)mCO—, —(CH2)mSO—, —(CH2)mSO2— or —(CH2)mNR—;
- L is a phenyl ring that is optionally substituted with one, two, or three substituent(s) independently selected from the group consisting of alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, azido, hydroxyalkyl of 1-6 carbon atoms, halogen, halomethyl, alkoxymethyl of 2-7 carbon atoms, alkanoyloxymethyl of 2-7 carbon atoms, alkoxy of 1-6 carbon atoms, alkylthio of 1-6 carbon atoms, hydroxy, trifluoromethyl, cyano, nitro, carboxy, alkoxycarbonyl of 2-7 carbon atoms, alkanoyl of 2-7 carbon atoms, phenoxy, phenyl, thiophenoxy, benzoyl, benzyl, amino, alkylamino of 1-6 carbon atoms, dialkylamino of 2 to 12 carbon atoms, phenylamino, benzylamino, alkanoylamino of 1-6 carbon atoms, alkenoylamino of 3-8 carbon atoms, alkynoylamino of 3-8 carbon atoms, carboxyalkyl of 2-7 carbon atoms, carboalkoxyalkyl of 3-8 carbon atoms, aminoalkyl of 1-5 carbon atoms, N-alkylaminoalkyl of 2-9 carbon atoms, N,N-dialkylaminoalkyl of 3-10 carbon atoms, N-alkylaminoalkoxy of 3-9 carbon atoms, N,N-dialkylaminoalkoxy of 4-10 carbon atoms, mercapto, methylmercapto, alkanoyloxy of 1-6 carbon atoms, alkenoyloxy of 3-8 carbon atoms, alkynoyloxy of 3-8 carbon atoms, carbamoyl, N-alkylcarbamoyl of 2-7 carbon atoms, N,N-dialkylcarbamoyl of 3-13 carbon atoms, and benzoylamino;
- or
- L is a 5- or 6-membered heteroaryl ring where the heteroaryl ring contains 1 to 3 heteroatoms selected from N, O, and S and where the heteroaryl ring may be optionally mono- or di-substituted with substituent(s) selected from the group consisting of halogen, oxo, thiocarbonyl, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, azido, hydroxyalkyl of 1-6 carbon atoms, halomethyl, alkoxymethyl of 2-7 carbon atoms, alkanoyloxymethyl of 2-7 carbon atoms, alkoxy of 1-6 carbon atoms, alkylthio of 1-6 carbon atoms, hydroxy, trifluoromethyl, cyano, nitro, carboxy, alkoxycarbonyl of 2-7 carbon atoms, alkanoyl of 2-7 carbon atoms, phenoxy, phenyl, thiophenoxy, benzoyl, benzyl, amino, alkylamino of 1-6 carbon atoms, dialkylamino of 2 to 12 carbon atoms, phenylamino, benzylamino, alkanoylamino of 1-6 carbon atoms, alkenoylamino of 3-8 carbon atoms, alkynoylamino of 3-8 carbon atoms, carboxyalkyl of 2-7 carbon atoms, carboalkoxyalkyl of 3-8 carbon atoms, aminoalkyl of 1-5 carbon atoms, N-alkylaminoalkyl of 2-9 carbon atoms, N,N-dialkylaminoalkyl of 3-10 carbon atoms, N-alkylaminoalkoxy of 3-9 carbon atoms, N,N-dialkylaminoalkoxy of 4-10 carbon atoms, mercapto, methylmercapto, alkanoyloxy of 1-6 carbon atoms, alkenoyloxy of 3-8 carbon atoms, alkynoyloxy of 3-8 carbon atoms, carbamoyl, N-alkylcarbamoyl of 2-7 carbon atoms, N,N-dialkylcarbamoyl of 3-13 carbon atoms, and benzoylamino;
- m is 0-3;
- n is 0-1;
- X is N O, S, or NR;
- R is alkyl of 1-6 carbon atoms;
- Y and Z are both carbon or N;
- the ring structure of formula 1 then being a fused 5,6,6 or 6,6,6 tricycle;
- or one of Y and Z is N, O or S, and the other is a bond between the two end rings;
- the ring structure of formula 1 then being a fused 5,5,6 or 6,5,6 tricycle;
- or one of Y or Z is N with the other being carbon;
- the ring structure of formula 1 then being a fused 5,6,6 or 6,6,6 tricycle;
- 104
- A and D are each, independently, carbon, N, O, or S;
- B is carbon or N;
- the dashed line indicates an optional double bond;
- R1, R2, R3, and R4 are each, independently, not present, hydrogen, halogen, hydroxy, amino, hydroxyamino, trifluoromethyl, trifluoromethoxy, mercapto, alkyl of 1-6 carbon atoms, cycloalkyl of 3-8 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, alkenyloxy of 2-6 carbon atoms, alkynyloxy of 2-6 carbon atoms, hydroxyalkyl of 1-6 carbon atoms, mercaptoalkyl of 1-6 carbon atoms, halomethyl, alkoxymethyl of 2-7 carbon atoms, alkoxy of 1-6 carbon atoms, cycloalkoxy of 3-8 carbon atoms, alkylthio of 1-6 carbon atoms, cycloalkylthio of 3-8 carbon atoms, alkylsulphinyl of 1-6 carbon atoms, alkylsulfonyl of 1-6 carbon atoms, alkylsulfonamido of 1-6 carbon atoms, alkenylsulfonamido of 2-6 carbon atoms, alkynylsulfonamido of 2-6 carbon atoms, cyano, nitro, carboxy, alkoxycarbonyl of 2-7 carbon atoms, alkanoyl of 2-7 carbon atoms, alkenoyl of 3-7 carbon atoms, N-alkyl-N-alkenylamino of 4 to 12 carbon atoms, N,N-dialkenylamino of 6-12 carbon atoms, phenylamino, benzylamino, phenoxy, phenyl, thiophenoxy, benzyl, alkylamino of 1-6 carbon atoms, alkanoyloxy of 2-7 carbon atoms, alkenoyloxy of 3-8 carbon atoms, alkynoyloxy of 3-8 carbon atoms, carbamoyl, N-alkylcarbamoyl of 2-7 carbon atoms, N,N-dialkylcarbamoyl of 3-13 carbon atoms, dialkylamino of 2 to 12 carbon atoms, alkanoyloxymethyl group of 2-7 carbon atoms, alkenoyloxymethyl group of 2-7 carbon atoms, alkynoyloxymethyl group of 2-7 carbon atoms, azido, benzoyl, carboxyalkyl of 2-7 carbons, carboalkoxyalkyl of 3-8 carbon atoms,
- 105
- R5 is independently hydrogen, alkyl of 1-6 carbon atoms, aminoalkyl of 1-6 carbon atoms, N-alkylaminoalkyl of 2-9 carbon atoms, N,N-dialkylaminoalkyl of 3-12 carbon atoms, N-cycloalkylaminoalkyl of 4-12 carbon atoms, N-cycloalkyl-N-alkylaminoalkyl of 5-18 carbon atoms, N,N-dicycloalkylaminoalkyl of 7-18 carbon atoms, morpholino-N-alkyl wherein the alkyl group is 1-6 carbon atoms, piperidino-N-alkyl wherein the alkyl group is 1-6 carbon atoms, N-alkyl-piperazino-N-alkyl wherein either alkyl group is 1-6 carbon atoms, azacycloalkyl-N-alkyl of 3-11 carbon atoms, hydroxyalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-8 carbon atoms, or phenyl;
- V is (CH2)m, O, S, or NR6;
- R7 is NR6R6, R6, J, N(R6)3+, or NR6(OR6),
- M is NR6, O, S, N—[(C(R6)2)pNR6R6], or N—[(C(R6)2)p—OR6];
- W is NR6, O, S, or is a bond;
- Het is a heterocycle selected from the group consisting of morpholine, thiomorpholine, thiomorpholine S-oxide, thiomorpholine S,S-dioxide, piperidine, pyrrolidine, aziridine, pyridine, imidazole, 1,2,3-triazole, 1,2,4-triazole, thiazole, thiazolidine, tetrazole, piperazine, furan, thiophene, tetrahydrothiophene, tetrahydrofuran, dioxane, 1,3-dioxolane pyrrole, and tetrahydropyran;
- wherein the heterocycle is optionally mono- or di-substituted on carbon or nitrogen with R6;
- optionally mono- or di-substituted on carbon with hydroxy, —N(R6)2, or —OR6;
- optionally mono or di-substituted on carbon with the mono-valent radicals —(C(R6)2)sOR6 or —[(C(R6)2)sN(R6)2];
- or optionally mono or di-substituted on a saturated carbon with divalent radicals ═O or —O(C(R6)2)sO—;
- Ph is a phenyl ring optionally mono-, di- or tri-substituted with halogen, alkyl of 1-6 carbon atoms, trifluoromethyl, nitro, cyano, azido, halomethyl, carboxyl, alkoxycarbonyl, alkylthio, mercapto, mercaptomethyl, —N(R6)2, —OR6, —(C(R6)2)sOR6, —[(C(R6)2)sN(R6)2], or —(C(R6)2)kHet;
- R6 is hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, cycloalkyl of 1-6 carbon atoms, alkanoyl of 2-7 carbon atoms, carbamoylalkyl of 2-7 carbon atoms, hydroxyalkyl of 1-6 carbon atoms, hydroxycycloalkyl of 3-6 carbon atoms, or carboxyalkyl of 2-7 carbon atoms;
- or
- R6 is phenyl optionally mono-, di-, or tri-substituted with substituent(s) independently selected from halogen, alkoxy of 1-6 carbon atoms, trifluoromethyl, amino, alkylamino of 1-3 carbon atoms, dialkylamino of 2-6 carbon atoms, nitro, cyano, azido, halomethyl, alkoxymethyl of 2-7 carbon atoms, alkanoyloxymethyl of 2-7 carbon atoms, alkylthio of 1-6 carbon atoms, hydroxy, carboxyl, alkoxycarbonyl of 2-7 carbon atoms, phenoxy, phenyl, thiophenoxy, benzoyl, benzyl, phenylamino, benzylamino;
- alkanoylamino of 1-6 carbon atoms or alkyl of 1-6 carbon atoms;
- R8 and R9 are each, independently, [(C(R6)2)rN6R6], and —[(C(R6)2)rOR6];
- J is independently hydrogen, chlorine, fluorine, or bromine;
- g=1-6;
- p=24;
- q=0-4;
- r=1-4;
- s=1-6;
- or a pharmaceutically acceptable salt thereof,
- 106
- at least one of the bonds between A and B or B and D must be a double bond, with the other being a single bond;
- at least one of A, B, and D are not carbon;
- only one of A, B, or D can be O or S;
- when A, B, or D is O or S, the adjacent atoms must be carbon;
- provided that when R5 is bound to a nitrogen atom, the resulting structures do not include —N—C—N— or —O—C—N— radicals;
- and when R5 is bound to an oxygen atom, the resulting structures do not include an —N—C—O— radical;
- provided that when R6 is alkenyl of 2-7 carbon atoms or alkynyl of 2-7 carbon atoms, the alkenyl or alkynyl moieties are bound to a nitrogen or oxygen atom through a saturated carbon atom in the alkenyl or alkynyl chain;
- provided that when V is NR6 and R7 is NR6R6, N(R6)3+, or NR6(OR6), then g=2-6;
- provided that when M is O or S and R7 is OR6, then p=1-4;
- provided that when V is NR6, O, S, then k=2-4;
- provided that when V is O or S and M or W is O or S, then k=1-4
- provided that when W is not a bond with Het bonded through a nitrogen atom then q=2-4;
- and
- finally provided when W is a bond with Het bonded through a nitrogen atom and V is O or NR6 or S, then k=24.
68 more elements
An intermediate compound selected from the group:
- a) 4-oxo-1,4-dihydrobenzo[g]quinoline-3-carbonitrile,
- b) 4-chlorobenzo[g]quinoline-3-carbonitrile,
- c) 3-(dimethylaminomethyleneamino)-6,7-dimethoxynaphthalene-2-carboxylic acid methyl ester,
- d) 7,8-dimethoxy-4-oxo-1,4-dihydrobenzo[g]quinoline-3-carbonitrile,
- e) 4-chloro-7,8-dimethoxybenzo[g]quinoline-3-carbonitrile,
- f) 7-chloro-6-nitro-4-oxo-1-{([2-(trimethylsilyl)ethoxy]methyl}-1,4-dihydro-3-quinolinecarbonitrile,
- g) 6,7-diamino-4-oxo-1-(2-trimethylsilanyl-ethoxymethyl)-1,4-dihydro-quinoline-3-carbonitrile,
- h) 8-oxo-5-{[2-(trimethylsilyl)ethoxy]methyl}-5,8-dihydro[1,2,3]triazolo[4,5-g]quinoline-7-carbonitrile,
- i) 8-oxo-5,8-dihydro[1,2,3]triazolo[4,5-g]quinoline-7-carbonitrile,
- j) 8-chloro[1,2,3]triazolo[4,5-g]quinoline-7-carbonitrile,
- k) 2-amino-8-oxo-5-{[2-(trimethylsilyl)ethoxy]methyl-5,8-dihydroimidazo[4,5-g]quinoline-7-carbonitrile,
- l) 2-amino-8-oxo-5,8-dihydroimidazo[4,5-g]quinoline-7-carbonitrile,
- m) 2-amino-8-chloroiniidazo[4,5-g]quinoline-7-carbonitrile,
- n) 8-oxo-5,8-dihydroimidazo[4,5-g]quinoline-7-carbonitrile,
- o) 8-chloroitidazo[4,5-g]quinoline-7-carbonitrile,
- p) 7-cyanoimidazo[4,5-g]quinolin-8-yl(3,4,5-trimethoxyphenyl)formamide,
- q) 7-cyanoimidazo[4,5-g]quinolin-8-yl(4-phenoxyphenyl)formamide,
- r) 7-{[2-(4-morpholinyl)ethyl]amino}-6-nitro-4-oxo-1-{[2-(trimethylsilyl)ethoxy]methyl}-1,4-dihydro-3-quinolinecarbonitrile,
- s) 6-amino-7-{[2-(4-morpholinyl)ethyl]amino}-4-oxo-1-{[2-(trimethylsilyl)ethoxy]methyl}-1,4-dihydro-3-quinolinecarbonitrile,
- t) 3-[2-(4-morpholinyl)ethyl]-8-oxo-5,8-dihydro-3H-imidazo[4,5-g]quinoline-7-carbonitrile,
- u) 8-chloro-3-[2-(4-morpholinyl)ethyl]-3H-imidazo[4,5-g]quinoline-7-carbonitrile,
- v) 1,4-dihydro-7-mercapto-6-nitro-4-oxo-1-[[2-(trimethylsilyl)ethoxy]methyl]-3-quinolinecarbonitrile,
- w) 8-hydroxy[1,3]thiazolo[4,5-g]quinoline-7-carbonitrile,
- x) 3-(dimethylaminomethyleneamino)benzo[b]thiophene-2-carboxylic acid methyl ester,
- y) 4-hydroxybenzo[4,5]thieno[3,2-b]pyridine-3-carbonitrile,
- z) 4-chlorobenzo[4,5]thieno[3,2-b]pyridine-3-carbonitrile,
- aa) 4-hydroxy-8-nitrobenzo[4,5]thieno[3,2-b]pyridine-3-carbonitrile,
- bb) 4-chloro-8-nitrobenzo[4,5]thieno[3,2-b]pyridine-3-carbonitrile,
- cc) 4-chloro-6-nitro[1]benzothieno[3,2-b]pyridine-3-carbonitrile,
- dd) 3-(dimethylaminomethyleneamino)benzofuran-2-carboxylic acid ethyl ester,
- ee) 4-hydroxybenzo[4,5]furo[3,2-b]pyridine-3-carbonitrile,
- ff) 4-chlorobenzo[4,5]furo[3,2-b]pyridine-3-carbonitrile,
- gg) 7-methoxy-4-oxo-1,4-dihydrobenzo[g]quinoline-3-carbonitrile,
- hh) 8-methoxy-4-oxo-1,4-dihydrobenzo[g]quinoline-3-carbonitrile,
- ii) 4-chloro-7-methoxybenzo[g]quinoline-3-carbonitrile,
- jj) 4-chloro-8-methoxybenzo[g]quinoline-3-carbonitrile,
- kk) ethyl 7-(2-chloroethoxy)-6-methoxy-3-nitro-2-naphthoate,
- ll) ethyl 6-(2-chloroethoxy)-7-methoxy-3-nitro-2-naphthoate,
- mm) ethyl 3-amino-7-(2-chloroethoxy)-6-methoxy-2-naphthoate,
- nn) ethyl 3-amino-6-(2-chloroethoxy)-7-methoxy-2-naphthoate,
- oo) 8-(2-chloroethoxy)-7-methoxy-4-oxo-1,4-dihydrobenzo[g]quinoline-3-carbonitrile,
- pp) 7-(2-chloroethoxy)-8-methoxy-4-oxo-1,4-dihydrobenzo[g]quinoline-3-carbonitrile,
- qq) 4-chloro-7-methoxy-8-(2-chloroethoxy)benzo[g]quinoline-3-carbonitrile,
- rr) 4-chloro-8-methoxy-7-(2-chloroethoxy)benzo[g]quinoline-3-carbonitrile,
- ss) 7,8-dimethoxy-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine-3-carbonitrile,
- tt) 4-chloro-7,8-dimethoxybenzo[b][1,8]naphthyridine-3-carbonitrile,
- uu) 8-(2-chloroethoxy)-7-methoxy-4-oxo-1,4-dihydrobenzo[b][1,8]naphthyridine-3-carbonitrile, and
- vv) 4-chloro-8-(2-chloroethoxy)-7-methoxybenzo[b][1,8]naphthyridine-3-carbonitrile.
45 more elements
A process for the preparation of a compound as described in the specification for any of Flowsheets 1″, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, or 14.
Dependencies are inferred from the claim text.