Enantioselective N-heterocyclic carbene-catalyzed annulation reactions with imidazolidinones
申请人:Scheidt Karl A.
公开号:US20140206886A1
公开(公告)日:2014-07-24
Enantiomeric bicyclic lactone compounds as can be prepared via an N-heterocyclic carbene-catalyzed annulation reaction.
通过N-杂环卡宾催化的环加成反应可以制备对映异构的双环内酯化合物。
Substituted imidazoheterocycle derivatives
申请人:O'Connor Stephen J.
公开号:US08835422B2
公开(公告)日:2014-09-16
The present invention provides substituted imidazoheterocycles having the general structure of formula I:
wherein Y is chosen from —O—, —OCRgRh—, —CRgRhO—, —CRgRh—, —(CRgRh)2—, —NRi—, —CRgRhNRi— and —NRiCRgRh—. Also provided are pharmaceutically acceptable salts, acid salts, hydrates, solvates and stereoisomers of the compounds of formula I. The compounds are useful as modulators of cannabinoid receptors and for the prophylaxis and treatment of cannabinoid receptor-associated diseases and conditions, such as pain, inflammation and pruritis.
The present application provides a borate ester compound suitable for being used as a proteasome inhibitor, a preparation method and use thereof, and the compound has the following structure
wherein, R1, R2 is asymmetric substituent in para-position, and R1 and R2 are both selected from the group consisting of halogen; and when R1 is F, R2 is not Cl; when R1 is Cl, R2 is not Br or F; and when R1 is Br, R2 is not Cl; X1, X2 is selected from the group consisting of hydroxyl, or X1 and X2 together form a substituted or unsubstituted 4 to 10 membered ring containing 1 to 4 heteroatoms being selected from the group consisting of O, N and S.