Efficient cyclopropanation of aryl/heteroaryl acetates and acetonitriles with vinyl diphenyl sulfonium triflate
作者:Mingwei Zhou、Yimin Hu、Ke En、Xuefei Tan、Hong C. Shen、Xuhong Qian
DOI:10.1016/j.tetlet.2018.02.080
日期:2018.4
A convenient method was developed for the cyclopropanation of arylacetates and aryl acetonitrile using vinyl diphenyl sulfonium triflate salt. The newly developed conditions are simple, mild, and compatible with a wide range of functional groups, without the need to apply an inert atmosphere, or alkali bases.
Process for making Boc-protected 3-aminohydantoins/thiohydantoins and 3-aminodihydrouracils/dihydrothiouracils
申请人:The Procter & Gamble Company
公开号:US06784293B1
公开(公告)日:2004-08-31
The present invention provides a process for the efficient assembly of Boc-protected 3-aminohydantoins/thiohydantoins and 3-aminodihydrouracils/dihydrothiouracils via a one-pot solution phase or solid phase synthesis from readily available starting materials.
The current invention relates to compounds of the formula: (Ia) and the pharmaceutically acceptable salts thereof and their use as TGF-beta signal transduction inhibitors for treating cancer and other diseases in a patient in need thereof by administration of said compounds.