Pyridopyrimidine protein tyrosine phosphatase inhibitors
申请人:Berthel Joseph Steven
公开号:US20070021445A1
公开(公告)日:2007-01-25
The present invention comprises pyridopyrimidinediamine compounds of the general formula I:
The compounds of the present invention are potent inhibitors of PTP1B. Accordingly, the invention also encompasses pharmaceutical compositions and methods of treating or preventing PTP-1B mediated diseases, including diabetes, obesity, and diabetes-related diseases.
Domino Cross Dehydrogenative Coupling of 2-Aryl Acetals with Ketones Using DDQ as Oxidant and Reactant Precursor
作者:Jiangsheng Li、Feifei Cai、Zhiwei Li、Yuan Xue、Chao Cheng、Weidong Liu、Zhong Cao
DOI:10.1002/cjoc.201200302
日期:2012.8
A novel dominocrossdehydrogenativecoupling of 2‐aryl acetals with unmodified ketones has been developed, usingDDQ as both the oxidant and reactantprecursor.
Preparation of novel dibenzoylmethane derivative sunscreen agents
申请人:Haarmann & Reimer GmbH
公开号:US04562067A1
公开(公告)日:1985-12-31
The new dibenzoylmethane derivatives of the formula ##STR1## in which R.sup.1 denotes hydrogen, methyl or ethyl and R.sup.2 denotes methyl or ethyl and R.sup.3 represents a straight-chain or branched lower alkyl radical, can be prepared by reacting acetophenone derivatives with an anisic ester or by reacting a substituted benzoic ester with p-methoxyacetophenone. The compounds can be used in sunscreen agents.
The unknown 1,2,4-triacetylbenzene has been prepared by oxidation of 2,4-di-ethylacetophenone with aqueous potassium permanganate. With amino acids in low concentrations, it gives deeply coloured solutions.
PYRIDOPYRIMIDINE PROTEIN TYROSINE PHOSPHATASE INHIBITORS
申请人:Berthel Steven Joseph
公开号:US20090062276A1
公开(公告)日:2009-03-05
The present invention comprises pyridopyrimidinediamine compounds of the general formula I:
The compounds of the present invention are potent inhibitors of PTP1B. Accordingly, the invention also encompasses pharmaceutical compositions and methods of treating or preventing PTP-1B mediated diseases, including diabetes, obesity, and diabetes-related diseases.