Highly Efficient Preparation of Selectively Isotope Cluster-Labeled Long Chain Fatty Acids via Two Consecutive C<sub>sp<sup>3</sup></sub>–C<sub>sp<sup>3</sup></sub> Cross-Coupling Reactions
作者:Sébastien Lethu、Shigeru Matsuoka、Michio Murata
DOI:10.1021/ol4036159
日期:2014.2.7
An efficient synthesis involving two copper-catalyzed alkyl–alkyl coupling reactions has been designed to easily access doubly isotope-labeled fatty acids. Such NMR- and IR-active compounds were obtained in excellent overall yields and will be further used for determining the conformation of an alkyl chain of lipidic biomolecules upon interaction with proteins.
Isotopically enriched N-substituted piperazine acetic acids and methods for the preparation thereof
申请人:Dey Subhakar
公开号:US20050148774A1
公开(公告)日:2005-07-07
In some embodiments, this invention pertains to isotopically enriched N-substituted piperazine acetic acids. In some embodiments, this invention pertains to methods for the preparation of isotopically enriched N-substituted piperazine acetic acids.
A complex rotation: The solutionconformation of spermidine (SPD) was elucidated by using diastereospecifically deuterated and 13C‐labeled derivatives to diagnose the orientation of seven conformationally relevant bonds. NMR coupling constants were determined for a complex formed from spermidine and adenosine triphosphate (ATP; see figure).
Active esters of N-substituted piperazine acetic acids, including isotopically enriched versions thereof
申请人:Dey Subhakar
公开号:US20050148771A1
公开(公告)日:2005-07-07
In some embodiments, this invention pertains to active esters of N-substituted piperazine acetic acid, including isotopically enriched versions thereof. In some embodiments, this invention pertains to methods for the preparation of active esters of N-substituted piperazine acetic acid, including isotopically enriched versions thereof.
Isotopically enriched N-substituted piperazines and methods for the preparation thereof
申请人:Pappin J.C. Darryl
公开号:US20050148773A1
公开(公告)日:2005-07-07
In some embodiments, this invention pertains to isotopically enriched N-substituted piperazines. In some embodiments, this invention pertains to methods for the preparation of isotopically enriched N-substituted piperazines.