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公开(公告)号:US06180789B2
公开(公告)日:2001-01-30
申请号:US09155294
申请日:1999-02-04
申请人: Mika Timmerbacka , Jorma Lehtonen , Veli Pekka Tanninen , Esa Muttonen , Jukka Kaukonen , Riikka Hyppöl{umlaut over (a)} , Reijo B{umlaut over (a)}ckström
发明人: Mika Timmerbacka , Jorma Lehtonen , Veli Pekka Tanninen , Esa Muttonen , Jukka Kaukonen , Riikka Hyppöl{umlaut over (a)} , Reijo B{umlaut over (a)}ckström
IPC分类号: A61K3150
CPC分类号: C07D237/04
摘要: The present invention relates to a method for preparing optically active enantiomers of [[4-(1,4,5,6-tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl]-hydrazono]propanedinitrile (I), particularly (−) enantiomer of (I). Furthermore, the invention relates to a novel crystalline polymorphic form of the (−) enantiomer.
摘要翻译: 本发明涉及制备[[4-(1,4,5,6-四氢-4-甲基-6-氧代-3-哒嗪基)苯基] - 肼基]丙二腈(I)的旋光对映异构体的方法, (I)的( - )对映异构体。 此外,本发明涉及( - )对映异构体的新型结晶多晶型物。