First preparation of single-enantiomer juvenile hormone III acid and (R)-juvenile hormone III-d3
摘要:
The (R)- and (S)-enantiomers of juvenile hormone (JH) III acid [(R)-2 and (S)-2] were prepared by the hydrolysis of (R)- and (S)-JH III [(R)-1 and (S)-1], respectively. Each enantiomer of 2 was purified by preparative reversed-phase high performance liquid chromatography in a single operation. (RS)-2 was methylated with CH3I and K2CO3 in MeCN, yielding (RS)-1. (R)-JH III-d3 [(R)-3], a single-enantiomer internal standard for quantification, was prepared from (R)-2 with CD3I and K2CO3 in MeCN.
Substrate Specificity for the Epoxidation of Terpenoids and Active Site Topology of House Fly Cytochrome P450 6A1
作者:John F. Andersen、Jennifer K. Walding、Philip H. Evans、William S. Bowers、René Feyereisen
DOI:10.1021/tx9601162
日期:1997.2.1
methoprene. The four geometric isomers of methyl farnesoate were metabolized predominantly to the 10,11-epoxides, but also the 6,7-epoxides and to the diepoxides. The 10,11-epoxide of methyl (2E,6E)-farnesoate was produced in a 3:1 ratio of the (10S) and (10R) enantiomers. Monoepoxides of methyl farnesoate were metabolized efficiently to the diepoxides. Methyl farnesoate epoxidation was strongly inhibited
First preparation of single-enantiomer juvenile hormone III acid and (<i>R</i>)-juvenile hormone III-<i>d</i><sub>3</sub>
作者:Akio Ichikawa、Makiko Takenaka、Hiroshi Ono
DOI:10.1080/14786411003752045
日期:2010.11.20
The (R)- and (S)-enantiomers of juvenile hormone (JH) III acid [(R)-2 and (S)-2] were prepared by the hydrolysis of (R)- and (S)-JH III [(R)-1 and (S)-1], respectively. Each enantiomer of 2 was purified by preparative reversed-phase high performance liquid chromatography in a single operation. (RS)-2 was methylated with CH3I and K2CO3 in MeCN, yielding (RS)-1. (R)-JH III-d3 [(R)-3], a single-enantiomer internal standard for quantification, was prepared from (R)-2 with CD3I and K2CO3 in MeCN.