3) Chemical resolution of optical isomers 光学异构体的化学拆分4) optical resolution 光学拆分 1. Herein the synthesis and optical resolution of inherently chiral calixarenes and their applications in enantioselective recognition and asymmetric catalysis are reviewed. 本文综述了固有手性杯芳烃的合成、...
One of the isomers was optically inactive C"i conformation. The other optical active forms were resolved to give a pair of enantiomers, which were characterized by optical rotation and CD spectra. Thus the optical inactivity of a compound such as meso-tartaric acid that can take C"i ...
3) Chemical resolution of optical isomers 光学异构体的化学拆分4) racemic reduction 消旋体拆分 例句>> 5) racemic resolution 外消旋体拆分 1. The current research of racemic resolution and asymmetric reduction to prepare the optically active CHBE by biocatalysis is introduced. 综述了生物催化制备...
Gas chromatographic determination of optically active allethrin and phthalthrin Total contents of allethrin and phthalthrin and their optical isomers were determined on a gas chromatograph (GC) equipped with a hydrogen flame ionization detector. The retention times of the dl-trans isomers of allethri...
other chemically active forms thereof, and pharmaceutically acceptable salts of these compounds, including a tetrasodium salt. These alternative forms and salts, processes for their production, and pharmaceutical compositions comprising them, are well known in the art and set forth, for example, in U...
More particularly, the present invention relates to a method of producing optically active Ethyl (3R,5S,6E)-7-[2-cyclopropyl-4-(4-fluorophenyl)quinoline-3-yl]-3,5-dihydroxy-6-heptenoate. BACKGROUND ART In general, optical isomers, which are isomers having relation of a mirror image and...
光学拆分1. Herein the synthesis and optical resolution of inherently chiral calixarenes and their applications in enantioselective recognition and asymmetric catalysis are reviewed. 本文综述了固有手性杯芳烃的合成、光学拆分及其在手性识别和不对称催化领域的应用。