Facile esterification of carboxylic acids with organophosphorus reagents
作者:V. Balasubramaniyan、V.G. Bhatia、S.B. Wagh
DOI:10.1016/s0040-4020(01)88552-5
日期:1983.1
A mixture of alkyl phosphate esters (APE) obtained from P4O10 and alkanols taken in 1:6 mole ratio is an excellent esterification reagent for several classes of carboxylicacids. This new reagent offers several advantages compared to conventional reagents.
由P 4 O 10获得的烷基磷酸酯(APE)和以1:6摩尔比获得的链烷醇的混合物是用于几类羧酸的优良酯化试剂。与常规试剂相比,这种新试剂具有多个优点。
Parallel synthesis of tandem Ugi/Diels–Alder reaction products on a soluble polymer support directed toward split-pool realization of a small molecule library
作者:Masato Oikawa、Minoru Ikoma、Makoto Sasaki
DOI:10.1016/j.tetlet.2004.11.115
日期:2005.1
A series of parallel reactions were carried out for the tandem Ugi/Diels–Alder reaction on our MPEG–O–CH2- platform. Ninety-six out of a 100 entries were successful to give complex heterotricycles. The stereoselectivity was found not to be influenced by the building blocks used for amine and carboxylic acid components. An unexpected side pathway was found but was suppressed by employing appropriate
Oxazolidinone derivatives having a 7-membered heterocyclic ring
申请人:Research Foundation Itsuu Laboratory
公开号:EP2233484A2
公开(公告)日:2010-09-29
The present invention provides a compound of the formula:
or a pharmaceutically acceptable salt or solvate thereof
wherein
Y1 is NRa, O, S, SO or SO2;
Ring B is optionally substituted carbocycle or optionally substituted heterocycle.