Compounds of the formula ##STR1## wherein Y can be tetrazolyl are disclosed. These compounds are useful as cardiovascular agents.
公开了式子##STR1##中Y可以是四唑基的化合物。这些化合物可用作心血管药物。
Hypotensive peptides and their use
申请人:Sankyo Company Limited
公开号:US04548926A1
公开(公告)日:1985-10-22
Oligopeptides of formula (I) ##STR1## (wherein R.sup.1 CO-- is an acyl group. But is an isobutyl or sec-butyl group and X is a variety of organic groups) and salts and esters thereof have valuable renin inhibitory activity.
New hypotensive peptides, their preparation and their use
申请人:SANKYO COMPANY LIMITED
公开号:EP0128762A2
公开(公告)日:1984-12-19
Oligopeptides of formula (I)
(wherein R1 CO- is an acyl group, But is an isobutyl or sec-butyl group and X is a variety of organic groups) and salts and esters thereof have valuable renin inhibitory activity and are prepared by conventional polypeptide synthesis.
A general simple procedure having the potential for large scale preparations of racemic β3-amino acids has been developed. The procedure involves base-catalyzed Michael-type addition of sodium diethyl malonate to N-Boc-α-amidoalkyl-p-tolyl sulfones in tetrahydrofuran. Hydrolysis of the adducts by refluxing with 6 M aqueous hydrochloric acid affords β3-amino acid hydrochlorides in high yield and excellent