Protection of alcohols as their (p-methoxybenzyloxy)methyl ethers.
作者:Alan P. Kozikowski、Jiang-Ping Wu
DOI:10.1016/s0040-4039(00)95608-9
日期:——
Protection of even tertiary alcohols can be accomplished by treatment with p-methoxybenzyl chloromethylether. Deprotection can be effected under mild conditions using the DDQ reaction conditions described by Oikawa.
[EN] 5-PHENOXY-3H-PYRIMIDIN-4-ONE DERIVATIVES AND THEIR USE AS HIV REVERSE TRANSCRIPTASE INHIBITORS<br/>[FR] DÉRIVÉS DE 5-PHÉNOXY-3H-PYRIMIDIN-4-ONE ET LEUR UTILISATION EN TANT QU'INHIBITEURS DE LA TRANSCRIPTASE INVERSE DU VIH
申请人:MERCK SHARP & DOHME
公开号:WO2014058747A1
公开(公告)日:2014-04-17
Compounds of Formula (I) are HIV reverse transcriptase inhibitors, wherein R1, R2, RE, L, M and Z are defined herein. The compounds of Formula (I) and their pharmaceutically acceptable salts are useful in the inhibition of HIV reverse transcriptase, the prophylaxis and treatment of infection by HIV and in the prophylaxis, delay in the onset or progression, and treatment of AIDS. The compounds and their salts can be employed as ingredients in pharmaceutical compositions, optionally in combination with other antivirals, immunomodulators, antibiotics or vaccines.
A novel and efficient strategy for the synthesis of various carbamates using carbamoyl chlorides under solvent-free and grinding conditions using microwave irradiation
作者:Hassan Zare、Mohammad Mehdi Ghanbari、Marzieh Jamali、Abdollah Aboodi
DOI:10.1016/j.cclet.2012.06.025
日期:2012.8
different alcohols, phenols, diols and this intermediate at room temperature with grinding and in solvent-free conditions undermicrowaveirradiation. The presence of various safe bases is shown to be effective in reducing the reaction times, increasing the yields and easing purification. The present method does not involve any hazardous phosgene.
Synthetic studies on the seven- and eight-membered rings by the intramolecular Nozaki–Hiyamareaction of the allylic phosphates are described. The yield greatly depends on the structure of substrate; however, some complex substrates afforded desired products in high to excellent yield.
Synthesis of a (β-acetamido-α-acetoxyethyl)boronic ester via azido boronic esters
作者:Donald S. Matteson、Davis Maliakal、Levente Fabry-Asztalos
DOI:10.1016/j.jorganchem.2008.03.031
日期:2008.6
(Azidomethyl)boronic esters of 1,2-dicyclohexyl-1,2-ethanediol (“DICHED”) and pinanediol have been prepared from the corresponding (bromomethyl)boronic esters. Conversion to (2-azido-1-chloro- or bromoethyl)boronic esters by reaction with a (dihalomethyl)lithium followed. Attempted displacement of halide from DICHED (2-azido-1-haloethyl)boronates with alkoxides failed. Reaction of either pinanediol