A Regioselective Synthesis of Dimethyl Phthalide-3-phosphonates
作者:Mitsuaki Watanabe、Saori Ijichi、Sunao Furukawa
DOI:10.1055/s-1993-25807
日期:——
Dimethyl phthalide-3-phosphonates having various substituents on the benzene ring were regioselectively synthesized by the reaction of N,N-diethyl-2-formylbenzamides with tert-butyldimethylsilyl dimethyl phosphite followed by treatment with methanesulfonic acid. N,N-Diethyl-2-formylbenzamides were regioselectively prepared by ortho lithiation-formylation of the corresponding benzamides.
Hypoxia-activated prodrugs of phenolic olaparib analogues for tumour-selective chemosensitisation
作者:Way W. Wong、Sophia F. O'Brien-Gortner、Robert F. Anderson、William R. Wilson、Michael P. Hay、Benjamin D. Dickson
DOI:10.1039/d3md00117b
日期:——
Hypoxia-activated prodrugs of phenolic olaparib analogues are deactivated in oxic cell culture and cytotoxicity is restored under hypoxia. Temozolomide combination studies suggest a feasible route to PARP inhibitor use beyond synthetic lethality.
Stereoselective Synthesis of .beta.-Oxygenated .alpha.-Hydroxyphosphonates by Lewis Acid-Mediated Stereoselective Hydrophosphonylation of .alpha.-Benzyloxy Aldehydes. An Application to the Synthesis of Phosphonic Acid Analogs of Oxyamino Acids
New silicon-phosphorus reagents in organic synthesis. Carbonyl and conjugate addition reactions of silicon phosphite esters and related systems
作者:David A. Evans、Kenneth M. Hurst、James M. Takacs
DOI:10.1021/ja00479a031
日期:1978.5
1,4-addition reactions of organosilicon tervalentphosphorusesters, XlPOSiR3(X = OMe, NMe2, Ph), with saturated and a,@-unsaturated aldehydes and ketones have been studied. These addition reactions have been compared with the complementary reactions of alkyl phosphorusesters, X2POCH3, and R3SiCI with carbonyl substrates. With a,@-un- saturated aldehydes, a judicious choice of reagent and conditions