A new strategy has been established for the kineticresolution of racemic allylic alcohols through a palladium/sulfonyl‐hydrazide‐catalyzed asymmetric OH‐substitution under mild conditions. In the presence of 1 mol % [Pd(allyl)Cl]2, 4 mol % (S)‐SegPhos, and 10 mol % 2,5‐dichlorobenzenesulfonyl hydrazide, a range of racemic allylic alcohols were smoothly resolved with selectivity factors of more than
Disubstituted chalcone oximes as selective agonists of RAR retinoid receptors
申请人:Tsang Yin Kwok
公开号:US20050148590A1
公开(公告)日:2005-07-07
Compounds of the formula
where the variables are as defined in the specification, are useful for preventing or treating emphysema and related pulmonary conditions of mammals and other diseases and conditions which are responsive to RAR
γ
agonist retinoids, such as skin related diseases, including but not limited to acne and psoriasis.
TRIPEPTIDE COMPOUND, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF
申请人:NORTHWEST UNIVERSITY
公开号:US20170267718A1
公开(公告)日:2017-09-21
Provided are a tripeptide compound, a preparation method therefor, and an application thereof. The structure of the related compound is represented by formula (I). The provided compound has angiotensin converting enzyme inhibiting bioactivity, and the compound and a pharmaceutical composition thereof play a role in preventing and treating hypertension and other cardiocerebral vascular system diseases.