Process development of a disease-modifying antirheumatic drug, TAK-603, based on optimization of Friedel–Crafts reaction and selective substitution of a triazole ring
摘要:
A practical method for the preparation of TAK-603, an antirheumatic drug, has been developed. As a result of optimizing the Friedel-Crafts reaction in the presence of SnCl4/POCl3, 2-aminobenzophenone skeleton, the key intermediate of TAK-603, was formed with Pod yield. The selective substitution reaction of 1,2,4-triazole was accomplished using 4-amino-1,2,4-triazole and deamination. (c) 2006 Elsevier Ltd. All rights reserved.
Pharmaceutical composition containing quinoline or quinazoline derivatives
申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0634169A1
公开(公告)日:1995-01-18
The present invention provides a pharmaceutical composition for inhibiting bone resorption or for preventing or treating osteoporosis which comprises a quinoline or quinazoine derivative as an active ingredient.