PROCESS FOR TOTAL SYNTHESIS OF PLADIENOLIDE B AND PLADIENOLIDE D
申请人:KANADA Regina Mikie
公开号:US20100204490A1
公开(公告)日:2010-08-12
Process for producing compound of Formula:
wherein P
2
, P
3
and R
2
are the same as defined below, characterized by comprising reacting a compound represented by Formula (7):
wherein P
3
means a protecting group for hydroxy group; and Het means a 1-phenyl-1H-tetrazol-5-yl group, with a compound represented by Formula (8):
wherein P
2
means a protecting group for hydroxy group; and R
2
means a phenyl group which may be substituted, in the presence of a base.
TOTAL SYNTHESIS OF PLADIENOLIDE B AND PLADIENOLIDE D
申请人:Eisai R&D Management Co., Ltd.
公开号:EP1935893A1
公开(公告)日:2008-06-25
Disclosed is a process for production of a compound represented by the formula (11):
[wherein P1 represents a hydrogen atom or a protective group for a hydroxyl group; P7 represents a hydrogen atom or a protective group for a hydroxyl group; P8 represents a hydrogen atom, an acetyl group or a protective group for a hydroxyl group and P9 represents a hydrogen atom or a protective group for a hydroxyl group, or P8 and P9 may together form a group represented by the formula:
(where R5 represetns a phenyl group which may have a halogen atom; and R1 represetns a hydrogen atom or a hydroxyl group)]. The process comprises the step of reacting a compound represented by the formula (12):
(wherein P7 and R1 are as defined above) with a compound represented by the formula (13):
(wherein P1, P8, P9 and R5 are as defined above) in the presence of a catalyst.