Process to prepare pioglitazone via several novel intermediates

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C546S269700

Reexamination Certificate

active

07863300

ABSTRACT:
A novel process for preparing thiazolidinediones, preferably Pioglitazone, as described. Also described are novel intermediates involved in its synthesis and process for their preparation and use in medicine.

REFERENCES:
patent: 4287200 (1981-09-01), Kawamatsu et al.
patent: 4340605 (1982-07-01), Kawamatsu et al.
patent: 4438141 (1984-03-01), Kawamatsu et al.
patent: 4444779 (1984-04-01), Kawamatsu et al.
patent: 4687777 (1987-08-01), Meguro et al.
patent: 4812570 (1989-03-01), Meguro et al.
patent: 4898947 (1990-02-01), Meguro et al.
patent: RE36575 (2000-02-01), Meguro et al.
patent: 2006/0167061 (2006-07-01), Pandey et al.
patent: 2008/0004446 (2008-01-01), Pandey et al.
patent: 0008203 (1980-02-01), None
patent: 0193256 (1986-09-01), None
patent: 0257781 (1988-03-01), None
patent: 93/22445 (1993-11-01), None
patent: 02/88120 (2002-11-01), None
Momose et al. “Studies on antidiabetic agents. X. Synthesis and biological activities of pioglitazone and related compounds” Chem. Pharm. Bull. 39:1440-1445 (1991).
Sohda et al. “Studies on antidiabetic agents. Synthesis and hypoglycemic activity of 5-[4-(pyridylalkoxy)-benzyl]-2,4-thiazolidinediones” Arzneim.-Forsch. Drug Research 40(I):37-42, (1990).
Int'l Search Report for PCT/IN2003/00241 completed Jan. 22, 2004.
Written Opinion for PCT/IN2003/00241 mailed Apr. 6, 2004.
Int'l Preliminary Examination Report for PCT/IN2003/00241 completed Oct. 20, 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process to prepare pioglitazone via several novel intermediates does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process to prepare pioglitazone via several novel intermediates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process to prepare pioglitazone via several novel intermediates will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2736820

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.