Über die Herstellung und physiologischen Eigenschaften einiger Acetylenverbindungen und verwandter Stoffe. 1. Mitteilung
作者:Emil Hofstetter、A. E. Wilder Smith
DOI:10.1002/hlca.19530360704
日期:——
The preparation of 3-p-methoxyphenyl-1-pentyne-3-ol,3-p-methoxyphenyl-2-pentene-4-yne, 3,4-bis(p-methoxyphenyl)-1-hexyne-3-ol, some reaction products and the physiological properties of these substances are described. 3,4-Bis(p-methoxyphenyl)-hexyne-ol is practically non-toxic and possesses sedative properties.
Trapping of metabolically generated electrophilic species with cyanide ion: metabolism of 1-benzylpyrrolidine
作者:Bert Ho、Neal Castagnoli
DOI:10.1021/jm00176a006
日期:1980.2
analogues of 4 with rabbit liver microsomal preparations in the presence of cyanide ion have led to the characterization of 1-benzyl-2-cyanopyrrolidine (13), cis- and trans-1-benzyl-2,5-dicyanopyrrolidine (14a and 14b, respectively), and 1-benzyl-5-cyano-2-pyrrolidinone (15). The cyano adducts of the amine are thought to result from nucleophilic attack by cyanide ion on metabolically generated iminium species
Catalytic acceptorless dehydrogenations: Ru-Macho catalyzed construction of amides and imines
作者:Nathan J. Oldenhuis、Vy M. Dong、Zhibin Guan
DOI:10.1016/j.tet.2014.03.085
日期:2014.7
A commercially available ruthenium(II) PNP type pincer catalyst (Ru-Macho) promotes formation of amides and imines from alcohols and amines via an acceptorless dehydrogenation pathway. The formation of secondary amides, tertiary amides, and secondary ketimines occurs in yields ranging from 35% to 95%.
The present invention provides engineered carboxyesterase enzymes having improved properties as compared to a naturally occurring wild-type carboxyesterase enzymes, as well as polynucleotides encoding the engineered carboxyesterase enzymes, host cells capable of expressing the engineered carboxyesterase enzymes, and methods of using the engineered carboxyesterase enzymes in amidation reactions.