Methano carbacyclin analogs
AssigneeThe Upjohn Company
InventorPaul A. Aristoff
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Abstract
The present specification provides novel analogs of carbacyclin (CBA.sub.2), 6a-carba-prostacyclin (6a-carba-PGI.sub.2), which have pronounced prostacyclin-like pharmacological activity, e.g., as platelet anti-aggregatory agents. Specifically the novel chemical analogs of CBA.sub.2 are those substituted by fluoro (C-5), alkyl (C-9), interphenylene (C-5), and methano (C-6a,9). Further provided are benzindene analogs of CBA.sub.2 and substituted forms thereof, i.e., 9-deoxy-2',9-methano (or 2',9-metheno)-3-oxa-4,5,6-trinor-3,7-(1',3'-interphenylene)-PGF.sub.1 compounds. Also provided are a variety of novel chemical intermediates, e.g., substituted bicyclo[3.3.0]octane intermediates, and chemical process utilizing such intermediates which are useful in the preparation of the novel CBA.sub.2 analogs.
Claims5
A carbacyclin analog of formula X:
- wherein n is one or 2;
- wherein L.sub.1 is .alpha.-R.sub.3 :.beta.-R.sub.4, .alpha.-R.sub.4 :.beta.-R.sub.3, or a mixture of .alpha.-R.sub.3 :.beta.-R.sub.4 and .alpha.-R.sub.4 :.beta.-R.sub.3, wherein R.sub.3 and R.sub.4 are hydrogen, methyl, or fluoro, being the same or different, with the proviso that one of R.sub.3 and R.sub.4 is fluoro only when the other is hydrogen or fluoro;
- wherein M.sub.1 is .alpha.-OH:.beta.-R.sub.5 or .alpha.-R.sub.5 :.beta.-OH, wherein R.sub.5 is hydrogen or methyl;
- wherein R.sub.7 is
- (1) --C.sub.m H.sub.2.sbsb.m --CH.sub.3, wherein m is an integer from one to 5, inclusive,
- (2) phenoxy optionally substituted by one, two or three chloro, fluoro, trifluoromethyl, (C.sub.1 -C.sub.3)alkyl, or (C.sub.1 -C.sub.3)alkoxy, with the proviso that not more than two substituents are other than alkyl, with the proviso that R.sub.7 is phenoxy or substituted phenoxy, only when R.sub.3 and R.sub.4 are hydrogen or methyl, being the same or different,
- (3) phenyl, benzyl, phenylethyl, or phenylpropyl optionally substituted on the aromatic ring by one, two or three chloro, fluoro, trifluoromethyl, (C.sub.1 -C.sub.3)alkyl, or (C.sub.1 -C.sub.3)alkoxy, with the proviso that not more than two substituents are other than alkyl,
- (4) cis--CH.dbd.CH--CH.sub.2 --CH.sub.3,
- (5) --(CH.sub.2).sub.2 --CH(OH)--CH.sub.3, or
- (6) --(CH.sub.2).sub.3 --CH.dbd.C(CH.sub.3).sub.2 ;
- wherein --C(L.sub.1)--R.sub.7 taken together is
- (1) (C.sub.4 -C.sub.7)cycloalkyl optionally substituted by one to 3 (C.sub.1 -C.sub.5) alkyl;
- (2) 2-(2-furyl)ethyl,
- (3) 2-(3-thienyl)ethoxy, or
- (4) 3-thienyloxymethyl;
- wherein R.sub.8 is hydroxy, hydroxymethyl, or hydrogen;
- wherein R.sub.15 is hydrogen or fluoro;
- wherein X.sub.1 is
- (1) --COOR.sub.1, wherein R.sub.1 is
- (a) hydrogen,
- (b) (C.sub.1 -C.sub.12)alkyl,
- (c) (C.sub.3 -C.sub.10)cycloalkyl,
- (d) (C.sub.7 -C.sub.12)aralkyl,
- (e) phenyl, optionally substituted with one, 2 or 3 chloro or (C.sub.1 -C.sub.3)alkyl,
- (f) phenyl substituted in the para position by
- (i) --NH--CO--R.sub.25,
- (ii) --CO--R.sub.26,
- (iii) --O--CO--R.sub.54, or
- (iv) --CH.dbd.N--NH--CO--NH.sub.2 wherein R.sub.25 is methyl, phenyl, acetamidophenyl, benzamidophenyl, or --NH.sub.2 ;
- R.sub.26 is methyl, phenyl, --NH.sub.2, or methoxy;
- and R.sub.54 is phenyl or acetamidophenyl;
- inclusive, or
- (g) a pharmacologically acceptable cation;
- (2) --CH.sub.2 OH,
- (3) --COL.sub.4, wherein L.sub.4 is
- (a) amino of the formula --NR.sub.51 R.sub.52, wherein R.sub.51 and R.sub.52 are
- (i) hydrogen,
- (ii) (C.sub.1 -C.sub.12)alkyl,
- (iii) (C.sub.3 -C.sub.10)cycloalkyl,
- (iv) (C.sub.7 -C.sub.12)aralkyl,
- (v) phenyl, optionally substituted with one, 2 or 3 chloro, (C.sub.1 -C.sub.3)alkyl, hydroxy, carboxy, (C.sub.2 -C.sub.5)alkoxycarbonyl, or nitro,
- (vi) (C.sub.2 -C.sub.5)carboxyalkyl,
- (vii) (C.sub.2 -C.sub.5)carbamoylalkyl,
- (viii) (C.sub.2 -C.sub.5)cyanoalkyl,
- (ix) (C.sub.3 -C.sub.6)acetylalkyl,
- (x) (C.sub.7 -C.sub.11)benzoylalkyl, optionally substituted by one, 2 or 3 chloro, (C.sub.1 -C.sub.3)alkyl, hydroxy, (C.sub.1 -C.sub.3)alkoxy, carboxy, (C.sub.2 -C.sub.5)alkoxycarbonyl, or nitro,
- (xi) pyridyl, optionally substituted by one, 2 or 3 chloro, (C.sub.1 -C.sub.3)alkyl, or (C.sub.1 -C.sub.3)alkoxy,
- (xii) (C.sub.6 -C.sub.9)pyridylalkyl optionally substituted by one, 2 or 3 chloro, (C.sub.1 -C.sub.3)alkyl, hydroxy, or (C.sub.1 -C.sub.3)alkyl,
- (xiii) (C.sub.1 -C.sub.4)hydroxyalkyl,
- (xiv) (C.sub.1 -C.sub.4)dihydroxyalkyl,
- (xv) (C.sub.1 -C.sub.4)trihydroxyalkyl, with the further proviso that not more than one of R.sub.51 and R.sub.52 is other than hydrogen or alkyl,
- (b) cycloamino selected from the group consisting of pyrolidino, piperidino, morpholino, piperazino, hexamethyleneimino, pyrrolino, or 3,4-didehydropiperidinyl optionally substituted by one or 2 (C.sub.1 -C.sub.12)alkyl of one to 12 carbon atoms, inclusive,
- (c) carbonylamino of the formula --NR.sub.53 COR.sub.51, wherein R.sub.53 is hydrogen or (C.sub.1 -C.sub.4)alkyl and R.sub.51 is other than hydrogen, but otherwise as defined above,
- (d) sulfonylamino of the formula --NR.sub.53 SO.sub.2 R.sub.51, wherein R.sub.51 and R.sub.53 are as defined in (c),
- (4) --CH.sub.2 NL.sub.2 L.sub.3, wherein L.sub.2 and L.sub.3 are hydrogen or (C.sub.1 -C.sub.4)-alkyl, being the same or different, or the pharmacologically acceptable acid addition salts thereof when X.sub.1 is --CH.sub.2 NL.sub.2 L.sub.3,
- wherein Y.sub.1 is trans--CH.dbd.CH--, cis--CH.dbd.CH--, --CH.sub.2 CH.sub.2 --, or --C.tbd.C--;
- and
- wherein Z.sub.1 is
- (1) --CH.sub.2 --(CH.sub.2).sub.f --C(R.sub.2).sub.2, wherein R.sub.2 is hydrogen or fluoro and f is zero, one, 2, or 3,
- (2) trans--CH.sub.2 --CH.dbd.CH--,
- (3) --(Ph)--(CH.sub.2).sub.g --, wherein (Ph) is 1,2-, 1,3-, or 1,4-phenylene and g is zero, one, 2, or 3,
- with the proviso that Z.sub.1 is --(Ph)--(CH.sub.2).sub.g -- only when
(5E)-6.alpha..beta.,9.beta.-methano-CBA.sub.2, a carbacyclin analog
(5Z)-6.alpha..beta.,9.beta.-methano-CBA.sub.2, a carbacyclin analog
(5E)-6.alpha..beta.,9.beta.-methano-CBA.sub.2, methyl ester, a
Dependencies are inferred from the claim text.