A mechanistic investigation of the carbohydrate/DBU cocatalyzed enantioselective diboration of alkenes is presented. These studies provide an understanding of the origin of stereoselectivity and also reveal a strategy for enhancing reactivity and broadening the substrate scope.
This invention provides substituted indole compounds of the general formula:
1
and pharmaceutically acceptable salt forms thereof, and methods for using the compounds as inhibitors of the activity of various phospholipase enzymes, particularly phospholipase A
2
enzymes, and for the medical treatment, prevention and inhibition of pain and inflammation.
Substituted pyrazinones, pyridines and pyrimidines as corticotropin releasing factor ligands
申请人:——
公开号:US20030171380A1
公开(公告)日:2003-09-11
Compounds provided herein are novel substituted pyrazinones, pyridines and pyrimidines of Formula (I) and (II):
1
Such compounds are particularly useful as CRF receptor ligands, and hence, in the treatment of various neurologically-related disorders such as affective disorder, anxiety and depression.
The highly efficient and stereo-specific synthesis of the enantioenriched versatile buildingblocks—namely, β-vinyltryptamines—by rhodium-catalyzed allylic substitutions of vinylaziridines and indoles is presented. Besides indoles, pyrroles can also serve as competent carbon nucleophiles in the current reaction, which is different from the previous works. To demonstrate the synthetic utility of our
A study on the SN2-type ringopeningreactions of aziridines with indoles as nucleophiles is reported. Under gold(I) catalysis a great variety of tryptamine derivatives were prepared in good to excellent yields with complete stereocontrol when chiral aziridines were used. We demonstrated that cationic gold(I) catalysts are superior Lewis acids to the previously reported group 3, 12 and 13 metals in
The present disclosure provides compounds that may be used as chromogens, fluorochromes, or as both. Said compounds may further be used as substrate for at least one enzyme, wherein said enzyme is capable of processing an aromatic amine group (—NH
2
), an aromatic hydroxyl group (—OH), or an aromatic phosphate group (—PO
4
). Furthermore, the present disclosure also provides methods for precipitating said compounds as well as methods for detecting a target using said compounds. Even further, kits comprising said compounds are disclosed. Said compounds may be used in any method utilizing a fluorochrome, a chromogen, or both.