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公开(公告)号:US4579954A
公开(公告)日:1986-04-01
申请号:US604385
申请日:1984-04-27
申请人: Kalman Harsanyi , Gyorgy Domany , Oszkar Fuchs , Lajos Toldy , Gyorgy Fekete , Endre Kasztreiner , Bela Hegedus , Ferenc Morasz , Andras Rado , Tibor Lang , Arpad Lazar , Eva Csongor , Tibor Balogh , Janos Borvendeg , Jozsef Reiter , Tibor Somogyi , Margit Bidlo nee Igloy
发明人: Kalman Harsanyi , Gyorgy Domany , Oszkar Fuchs , Lajos Toldy , Gyorgy Fekete , Endre Kasztreiner , Bela Hegedus , Ferenc Morasz , Andras Rado , Tibor Lang , Arpad Lazar , Eva Csongor , Tibor Balogh , Janos Borvendeg , Jozsef Reiter , Tibor Somogyi , Margit Bidlo nee Igloy
IPC分类号: A61K31/415 , A61P1/04 , C07D233/54 , C07D233/64
CPC分类号: C07D233/64
摘要: The invention relates to the new monohydrate of N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidine (cimetidine), a histamine-H.sub.2 receptor antagonist which is called N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidine H (cimetidine H) as well as to a process for the preparation of same, which comprises pouring a hot, homogeneous aqueous solution of N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidine, optionally containing also methylamine, onto ice and separating the N-methyl-N'-{2-[(5-methylimidazol-4-yl)-methylthio]-ethyl}-N"-cyanoguanidine monohydrate.
摘要翻译: 本发明涉及N-甲基-N' - {2 - [(5-甲基咪唑-4-基) - 甲硫基] - 乙基} -N' - 氰基胍(西咪替丁),组胺-H 2受体 称为N-甲基-N' - {2 - [(5-甲基咪唑-4-基) - 甲硫基] - 乙基} -N'-氰基胍脒H(西咪替丁H)的方法以及 其包括将热的均匀的N-甲基-N' - {2 - [(5-甲基咪唑-4-基) - 甲硫基] - 乙基} -N“ - 氰基胍的水溶液,任选地含有 并将甲胺加到冰上并分离N-甲基-N' - {2 - [(5-甲基咪唑-4-基) - 甲硫基] - 乙基} -N'-氰基胍一水合物。