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    • 6. 发明授权
    • OXAZOLIDINONE DERIVATIVES USEFUL AS ANTIARRHYTHMIC AND ANTIFIBRILLATORY AGENTS
    • 抗心律失常及效果抗纤维性颤动恶唑烷酮衍生物
    • EP0599968B1
    • 2000-01-12
    • EP92918216.0
    • 1992-08-10
    • PROCTER & GAMBLE PHARMACEUTICALS, INC.
    • PELOSI, Stanford, Salvatore, Jr.YU, Chia-Nien
    • C07D413/12A61K31/42C07D413/14A61K31/34A61K31/41
    • C07D413/10C07D413/12C07D413/14
    • The novel cyclic urethanes, and their pharmaceutically-acceptable salts and esters, described herein which are useful as antiarrhythmic and antifibrillatory agents and have general structure (I), wherein (a) X is a saturated or unsaturated, 5-, 6-, or 7-membered heterocycle or carbocycle; (b) R is selected from the group consisting of covalent bond, nil, heteroatom, carbonyl, heterocyclic ring, carbocyclic ring, alkyl, alkenyl, alkoxy, alkylamino, arylalkyl, aryloxy, acyl, acyloxy, and acylamino; (c) Y is a substituted or unsubstituted, saturated or unsaturated, 5-, 6-, or 7-membered heterocyclic ring or carbocyclic ring, or is nil; and wherein when R is nil, X and Y are fused ring systems; and when R is a covalent bond, X and Y are ring systems linked through a covalent bond; and when Y is nil, R is a covalent bond, and X is a carbocycle bound to L through R; (d) R1, R2, and R3 are independently selected from the group consisting of nil, Cl, F, Br, NH2, CF3, OH, SO3H, CH3SO2NH, COOH, alkoxy, alkyl, alkoxycarbonyl, hydroxyalkyl, carboxyalkyl, aminoalkyl, acylamino, and acyloxy; (e) L is selected from the group consisting of alkylamino, alkenylamino, alkylimino, alkenylimino and acylamino; wherein the nitrogen atom thereof is bound to the nitrogen atom at the 3-position of the cyclic urethane ring moiety; (f) R4 is selected from the group consisting of alkyl, alkenyl, alkynyl, alkylacyl, and heteroalkyl; (g) A is a substituted or unsubstituted, saturated or unsaturated, straight-chain or branched, C1-C8 heteroalkyl; or a substituted or unsubstituted, saturated or unsaturated heterocycle having 6- or 7-members which may not have an oxygen atom; and A has one nitrogen atom which is adjacent to R4; and (h) R5 is a substituted or unsubstituted C1 or C2 alkyl; and the pharmaceutically-acceptable salts and esters thereof.