Diastereoselective synthesis of multisubstituted thiacyclohexanes via cation–olefin cyclizations
作者:Xiao-Fan Yang、Chao-Jun Li
DOI:10.1016/s0040-4039(99)02299-6
日期:2000.2
Thiacyclohexane derivatives were synthesized in high yields with excellent diastereoselectivity via an indium trichloride-mediated cationic cyclization.
硫代环己烷衍生物通过三氯化铟介导的阳离子环化反应以高收率合成,具有非对映选择性。
BIODEGRADABLE LIPIDS FOR THE DELIVERY OF ACTIVE AGENTS
申请人:ALNYLAM PHARMACEUTICALS, INC.
公开号:US20130195920A1
公开(公告)日:2013-08-01
The present invention relates to a cationic lipid having one or more biodegradable groups located in a lipidic moiety (e.g., a hydrophobic chain) of the cationic lipid. These cationic lipids may be incorporated into a lipid particle for delivering an active agent, such as a nucleic acid. The invention also relates to lipid particles comprising a neutral lipid, a lipid capable of reducing aggregation, a cationic lipid of the present invention, and optionally, a sterol. The lipid particle may further include a therapeutic agent such as a nucleic acid.
Biodegradable lipids for the delivery of active agents
申请人:ALNYLAM PHARMACEUTICALS, INC.
公开号:US11071784B2
公开(公告)日:2021-07-27
The present invention relates to a cationic lipid having one or more biodegradable groups located in a lipidic moiety (e.g., a hydrophobic chain) of the cationic lipid. These cationic lipids may be incorporated into a lipid particle for delivering an active agent, such as a nucleic acid. The invention also relates to lipid particles comprising a neutral lipid, a lipid capable of reducing aggregation, a cationic lipid of the present invention, and optionally, a sterol. The lipid particle may further include a therapeutic agent such as a nucleic acid.
Diastereoselective Synthesis of Polysubstituted Tetrahydropyrans and Thiacyclohexanes via Indium Trichloride Mediated Cyclizations<sup>1</sup>
作者:Xiao-Fan Yang、Joel T. Mague、Chao-Jun Li
DOI:10.1021/jo001136i
日期:2001.2.1
between homoallylalcohols and mercaptans with aldehydes. In the case of tetrahydropyran products, the stereochemistry of the product was found to be directly correlated with the geometry of the homoallylalcohols; whereas the cross-cyclization of aldehydes with trans-homoallyl alcohols generated (up-down-up) 2,3,4-trisubstituted tetrahydropyran products exclusively, the reaction of aldehydes with cis-homoallyl