Title:
六環式化合物の調製法
Document Type and Number:
Japanese Patent JP2006518374
Kind Code:
A
Abstract:
This invention relates to novel processes for the preparation of compounds of the formula [1], wherein R1, R2, R3 and R4 are as defined in the claims and description as well as pharmaceutically acceptable salts thereof. The compounds of the formula [1] are hexacyclic compounds having potent anti-tumor activity.
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Inventors:
Hiroshi Fukuda
Murata Tsuyoshi
New Wife Satoshi
Hitomi Suda
Masao Tsukazaki
Murata Tsuyoshi
New Wife Satoshi
Hitomi Suda
Masao Tsukazaki
Application Number:
JP2006502679A
Publication Date:
August 10, 2006
Filing Date:
February 20, 2004
Export Citation:
Assignee:
Chugai Pharmaceutical Co., Ltd.
International Classes:
C07D491/22; A61K31/519; A61P35/00; C07B53/00; C07B61/00; C07C231/12; C07C233/43; C07D239/90; C07D491/14; C07D491/147
Domestic Patent References:
| JPH0559061A | 1993-03-09 | |||
| JP4305909B2 | 2009-07-29 |
Attorney, Agent or Firm:
Hatsushi Shimizu
Koichi Niimi
Koichi Niimi