Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PROSTAGLANDINS HAVING MULTI-SUBSTITUTED ARYLOXY GROUPS AND THEIR USE
Document Type and Number:
Japanese Patent JPH10259179
Kind Code:
A
Abstract:

To obtain the subject new compound having a multi-substituted aryloxy group on the ω chain of a prostaglandin and useful for preventing and treating eye diseases.

A compound of the formula [A is vinylene group, etc.; B is CH(OR3), etc.; R1, R2, R3 are each H, an acyl, etc.; Ar is phenyl having two or more halogen groups, etc., X is CH2, O, etc.; Z is OR4, NHSO2R6, SR7, etc.; R4, R6, R7 are each H, an alkyl, an aryl, an aralkyl, etc.], e.g. 16-(3,5- dichlorophenoxy)17,18,19,20-tetranorprostaglandin F2α methyl ester. The compound of the formula is synthesized by the application of a general PFG2α synthetic method comprising introducing an ω-chain having a multi-substituted aryloxy group to Corey lactone as a starting raw material, converting the product into a lactone, reducing the lactone into a lactol, subjecting the reduction product to a Wittig reaction, converting the carboxylic acid portion into an ester portion, etc., and, if necessary, subsequently subjecting the product to a protecting group-removing reaction or an acylation reaction.


Inventors:
SHIRASAWA EIICHI
KAGEYAMA MASAAKI
SAKATA KAZUHISA
MORI NOBUAKI
NAKANO TAKASHI
MATSUMURA YASUSHI
MORISAWA YOSHITOMI
Application Number:
JP25246397A
Publication Date:
September 29, 1998
Filing Date:
September 17, 1997
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SANTEN PHARMACEUTICAL CO LTD
ASAHI GLASS CO LTD
International Classes:
A61K31/557; A61K31/5575; A61P27/02; A61P27/06; A61P43/00; C07C405/00; (IPC1-7): C07C405/00; A61K31/557
Attorney, Agent or Firm:
Kenji Izumina (1 outside)