MACLEOD, ANGUS M.;BAKER, RAYMOND;FREEDMAN, STEPHEN B.;PATEL, SHAILENDRA;M+, J. MED. CHEM., 33,(1990) N, C. 2052-2059
作者:MACLEOD, ANGUS M.、BAKER, RAYMOND、FREEDMAN, STEPHEN B.、PATEL, SHAILENDRA、M+
DOI:——
日期:——
Thiadiazoles useful in the treatment of senile dementia
申请人:MERCK SHARP & DOHME LTD.
公开号:EP0307142B1
公开(公告)日:1994-09-14
US5405853A
申请人:——
公开号:US5405853A
公开(公告)日:1995-04-11
Synthesis and muscarinic activities of 1,2,4-thiadiazoles
作者:Angus M. MacLeod、Raymond Baker、Stephen B. Freedman、Shailendra Patel、Kevin J. Merchant、Michael Roe、John Saunders
DOI:10.1021/jm00169a041
日期:1990.7
synthesized by reaction of the lithium enolate of the 3-methoxycarbonyl compounds followed by ester hydrolysis and decarboxylation. The receptor-binding affinity and efficacy of these compounds as muscarinic ligands was assessed by radioligand binding assays using [3H]-N-methylscopolamine and [3H]oxotremorine-M. Optimal agonist affinity was observed for 3'-methyl compounds. Smaller substituents (H) retained