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Title:
5-O-DESOSAMINYLERYTHRONOLIDE A DERIVATIVE
Document Type and Number:
WIPO Patent Application WO/1993/021200
Kind Code:
A1
Abstract:
Object: to provide a novel macrolide antibiotic having a potent antibacterial activity. Constitution: a tricyclic carbamate derivative of a 3-oxo-6-methoxy-substituted 5-O-desosaminylerythronolide A derivative represented by general formula (I), and a pharmaceutically acceptable acid addition salt thereof. In formula (I), -A$(1,3)$ represents -N(R3)- (wherein R3 represents hydrogen or C1-C3 alkyl) or -N=; and R1 and R2 represent each C1-C3 alkyl. An intermediate, represented by general formula (II), useful for producing the 3-oxo-substituted 5-O-desosaminylerythronolide A derivative, wherein R4 represents acetyl or propionyl.

Inventors:
ASAKA TOSHIFUMI (JP)
KASHIMURA MASATO (JP)
MISAWA YOKO (JP)
MORIMOTO SHIGEO (JP)
HATAYAMA KATSUO (JP)
Application Number:
PCT/JP1993/000517
Publication Date:
October 28, 1993
Filing Date:
April 21, 1993
Export Citation:
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Assignee:
TAISHO PHARMACEUTICAL CO LTD (JP)
ASAKA TOSHIFUMI (JP)
KASHIMURA MASATO (JP)
MISAWA YOKO (JP)
MORIMOTO SHIGEO (JP)
HATAYAMA KATSUO (JP)
International Classes:
A61K31/395; C07D491/00; C07H17/00; C07H17/08; (IPC1-7): C07H17/00; C07H17/08
Domestic Patent References:
WO1992009614A11992-06-11
Foreign References:
EP0487411A11992-05-27
JPS62292795A1987-12-19
Other References:
See also references of EP 0638585A4
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