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公开(公告)号:US5149802A
公开(公告)日:1992-09-22
申请号:US729771
申请日:1991-07-10
IPC分类号: C07D205/08
CPC分类号: C07D205/08 , Y02P20/55
摘要: A process for producing 2-azetidinone derivatives represented by formula ##STR1## wherein R.sup.1 denotes a protecting group of a hydroxyl group,Z denotes a hydrogen atom or a protecting group of an amino group, andQ denotes ##STR2## in which X denotes a halogen atom, Y denotes a halogen atom or OR.sup.2, R.sup.2 denotes a hydrogen atom or a protecting group of a carboxyl group, and Y.sup.2 denotes OR.sup.3 or SR.sup.4 in which R.sup.3 denotes a hydrogen atom, a protecting group of a carboxyl group or an ester residue and R.sup.4 denotes an ester residue.
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公开(公告)号:US4997922A
公开(公告)日:1991-03-05
申请号:US297938
申请日:1989-01-17
IPC分类号: C07H15/252 , A61K31/65 , A61K31/70 , A61K31/7028 , A61K31/7034 , A61K31/704 , A61P31/04
CPC分类号: C07H15/252
摘要: 14-Trifluoromethanesulfonyloxydaunomycin represented by the following formula ##STR1## and its salt. This compound is useful as an intermediate for production of adriamycin.
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