Substituted polycyclic aryl and heteroaryl pyrazinones useful for selective inhibition of the coagulation cascade

A compound, or a pharmaceutically acceptable salt thereof, where said compound is selected from the group consisting of:

• 6-[3-aminophenyl]-5-chloro-N-[[4-iminomethylphenyl]methyl]-3-[N,N-dimethylhydrazino]-2-oxo-1(2H)-pyrazineacetamide;
• 6-[3-aminophenyl]-5-chloro-3-[N-ethyl-N-methylhydrazino]-N-[[4-iminomethylphenyl]methyl]-2-oxo-1(2H)-pyrazineacetamide;
• 6-[3-aminophenyl]-5-chloro-3-[N,N-diethylhydrazino]-N-[[4-iminomethylphenyl]methyl]-2-oxo-1(2H)-pyrazineacetamide;
• and
• 6-[3-aminophenyl]-3-[N-(azetidin-1-yl)amino]-5-chloro-N-[[4-iminomethylphenyl]methyl]-2-oxo-1(2H)-pyrazineacetamide.

A compound having the Formula:

• or a pharmaceutically acceptable salt thereof, wherein;
• B is selected from the group consisting of hydrido C2-C8 alkyl, C3-C8 alkenyl, C3-C8 alkynyl, and C2-C8 haloalkyl, wherein each member of group B is optionally substituted at any carbon up to and including 6 atoms from the point of attachment of B to A with one or more of the group consisting of R32, R33, R34, R35, and R36;
• R32, R33, R34, R35, and R36 are independently selected from the group consisting of hydrido, acetamido, haloacetamido, amidino, guanidino, alkoxy, hydroxy, amino, alkoxyamino, lower alkylamino, alkylthio, amidosulfonyl, monoalkyl amidosulfonyl, dialkyl amidosulfonyl, alkyl, halo, haloalkyl, haloalkoxy, hydroxyalkyl, carboalkoxy, carboxy, carboxamido, cyano, and Qb;
• Qb is selected from the group consisting of NR20R21, hydrido, C(NR25)NR23R24, and N(R26)C(NR25)N(R23)(R24), with the provisos that no more than one of R20 and R21 is hydroxy and that no more than one of R23 and R24 is hydroxy;
• R20, R21, R23, R24, R25, and R26 are independently selected from the group consisting of hydrido, alkyl, and hydroxy;
• A is selected from the group consisting of single covalent bond and (CH(R15))pa—(W7)rr wherein rr is an integer selected from 0 through 1, pa is an integer selected from 0 through 3, and W7 is selected from the group consisting of (R7)NC(O) and N(R7);
• R7 is selected from the group consisting of hydrido, hydroxy and alkyl;
• R15 is selected from the group consisting of hydrido, halo, alkyl, and haloalkyl;
• R1 is selected from the group consisting of hydrido, alkyl, cyano, haloalkyl, and halo;
• R2 is Z0—Q;
• Z0 is a covalent single bond;
• Q is selected from the group consisting of aryl and heteroaryl wherein (a) a ring carbon in a first alpha position relative to the ring carbon at the point of attachment is optionally substituted by R9, (b) a ring carbon in a second alpha position relative to the ring carbon at the point of attachment is optionally substituted by R13, (c) a ring carbon, in a first beta position relative to the ring carbon at the point of attachment and in an alpha position relative to the ring atom optionally substituted by R9, is optionally substituted by R10, (d) a ring carbon, in a second beta position relative to the ring carbon at the point of attachment and in an alpha position relative to the ring atom optionally substituted by R13, is optionally substituted by R12, and (e) a ring carbon, if present, in the gamma position relative to the ring carbon at the point of attachment and in an alpha position relative to each of the ring atoms optionally substituted by R10 and R12, respectively, is optionally substituted by R11;
• R9, R11, and R13 are independently selected from the group consisting of hydrido, hydroxy, amino, amidino, guanidino, lower alkylamino, alkylthio, alkylsulfonamido, alkylsulfinyl, alkylsulfonyl, amidosulfonyl, monoalkyl amidosulfonyl, alkyl, alkoxy, halo, haloalkyl, haloalkoxy, hydroxyalkyl, carboxy, carboxamido, and cyano;
• R10 and R12 are independently selected from the group consisting of hydrido, acetamido, haloacetamido, amidino, guanidino, alkyl, alkoxy, hydroxy, amino, alkoxyamino, lower alkylamino, alkylsulfonamido, amidosulfonyl, monoalkyl amidosulfonyl, dialkyl amidosulfonyl, hydroxyalkyl, aminoalkyl, carboalkoxy, carboxy, carboxyalkyl, amidocarbonyl, halo, haloalkyl, and cyano;
• Y0 is formula (IV):
• wherein D5, D6, J5, and J6 are independently selected from the group consisting of C, N, O, S and a covalent bond with the provisos that no more than one is a covalent bond, no more than one of D5, D6, J5, and J6 is O, no more than one of D5, D6, J5, and J6 is S, one of D5, D6, J5, and J6 must be a covalent bond when two of D5, D6, J5, and J6 are O and S, and no more than four of D5, D6, J5, and J6 are N;
• R16, R17, R18, and R19 are independently selected from the group consisting of hydrido, amidino, guanidino, carboxy, haloalkylthio, alkoxy, hydroxy, amino, lower alkylamino, alkylthio, alkylsulfinyl, alkylsulfonyl, alkanoyl, haloalkanoyl, alkyl, halo, haloalkyl, haloalkoxy, hydroxyalkyl, aminoalkyl, and cyano;
• and
• Qs is selected from the group consisting of a single covalent bond, CH2, and CH2CH2.

A compound having the Formula:

• wherein
• A is a bond;
• and
• B is selected from the group consisting of t-butyl, 3-pentyl, ethyl, propyl, 2-butyl, 2-(3-methylbutyl), (R)-2-butyl, 2-(4-methylpentyl), 2-propenyl, and 2-propynyl.