Kinetic Resolution of 1,2-Diols via NHC-Catalyzed Site-Selective Esterification
作者:Bin Liu、Jiekuan Yan、Ruoyan Huang、Weihong Wang、Zhichao Jin、Giuseppe Zanoni、Pengcheng Zheng、Song Yang、Yonggui Robin Chi
DOI:10.1021/acs.orglett.8b01029
日期:2018.6.15
A kinetic resolution of 1,2-diols bearing both a secondary and a primary alcohol motif through an N-heterocyclic carbene-catalyzed oxidativeacylation reaction has been developed. A site- and enantioselective esterification reaction is involved for this process. Both the monoacylated diols obtained and the remaining enantioenriched 1,2-diols are versatile building blocks for the preparation of functional
Synthesis of optically active 2-hydroxy monoesters via-kinetic resolution and asymmetric cyclization catalyzed by heterometallic chiral (salen) Co complex
作者:Wenji Li、Santosh Singh Thakur、Shu-Wei Chen、Chang-Kyo Shin、Rahul B. Kawthekar、Geon-Joong Kim
DOI:10.1016/j.tetlet.2006.03.042
日期:2006.5
The binuclear chiral (salen) Co complexes bearing Lewis acids of Al and Ga catalyze regio- and enantioselective ring opening of terminal epoxides with carboxylic acids. The ring opened product of epichlorohydrin with carboxylic acids followed by cyclization step in the presence of catalyst and base represent straightforward, efficient methods for the synthesis of enatiomerically enriched (>99% ee)
Levodopa prodrugs, and compositions and uses thereof
申请人:Xiang Jia-Ning
公开号:US20050282891A1
公开(公告)日:2005-12-22
Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
LEVODOPA PRODRUGS, AND COMPOSITIONS AND USES THEREOF
申请人:Xiang Jia-Ning
公开号:US20100197953A9
公开(公告)日:2010-08-05
Prodrugs of levodopa, methods of making prodrugs of levodopa, methods of using prodrugs of levodopa, and compositions of prodrugs of levodopa are disclosed.
本文披露了左旋多巴的前药、制备左旋多巴前药的方法、使用左旋多巴前药的方法以及左旋多巴前药的组合物。
Multi-Arm Polymeric Alkanoate Conjugates
申请人:Kozlowski Antoni
公开号:US20110200550A1
公开(公告)日:2011-08-18
Among other aspects, provided herein are multi-armed polymer conjugates comprising an alkanoate-linker, compositions comprising such conjugates, and related methods of making and administering the same. Methods of treatment employing such conjugates and related uses are also provided. The conjugates are prepared with high drug loading efficiencies.