1-Hydrocarbon-3,3-diphenyl-4-hydroxymethyl-2-pyrrolidinones and methods for making them from 4,5-dihydro-3,3-diphenyl-4-hydrocarbylaminomethylfuran-2(3H)ones are disclosed. Methods for making the 4,5-dihydro-3,3-diphenyl-4-hydrocarbylaminomethylfuran-2(3H)ones are also disclosed. The novel compounds are useful intermediates for the preparation of pharmacologically active 4-(4,4-disubstitutedpiperidinylmethyl)-3,3-diphenyl-2-pyrrolidinones.
Heterocyclic antidiarrheal compositions & methods of use
申请人:A. H. Robins Company, Inc.
公开号:US04324791A1
公开(公告)日:1982-04-13
1-R-4-(omega-substituted alkyl)-3,3-diphenyl-2-pyrrolidinones of the formula ##STR1## wherein R is hydrogen, lower alkyl, cyclohexyl or benzyl, R.sup.1 is hydrogen, chloro, bromo, fluoro, trifluoromethyl or lower alkoxy, R.sup.2 is hydrogen, chloro, bromo, or fluoro, A is hydroxy, lower-alkylcarbonyloxy or lower-alkoxycarbonyl and n is 1, 2 or 3 having analgetic and antidiarrheal activity are disclosed. The pharmaceutically acceptable acid addition salts of the bases are within the scope of the present invention.