Genotoxic activity of halogenated phenylglycine derivatives
摘要:
The discovery of genotoxic amino acids derived from phenylglycine, and possessing halogen substituents, is described. The utility of hypervalent iodine reagents in the synthesis of this class of compounds is highlighted. The mechanism of action of the (haloaryl)glycines was studied in Saccharomyces cerevisiae.
Chemo-enzymatic asymmetric synthesis of amino acids. Enantioselective hydrolyses of 2-phenyl-oxazolin-5-ones.
作者:Rui-Lin Gu、Ik-Soo Lee、Charles J. Sih
DOI:10.1016/0040-4039(92)88111-h
日期:1992.4
Porcine pancreatic lipase and the lipase of Aspergillus niger catalyze the enantioselective hydrolysis of a series of 4-substituted-2-phenyl-oxazolin-5-ones to yield optically active ()-and ()-N-benzoyl aminoacids respectively.
Synthesis of (−)‐Cytoxazone and (+)‐<i>epi</i>‐Cytoxazone: The Chiral Pool Approach
作者:Zorana Tokic‐Vujosevic、Goran Petrovic、Bojana Rakic、Radomir Matovic、Radomir N. Saicic
DOI:10.1081/scc-200048953
日期:2005.1.1
Immunomodulator (-)-cytoxazone and its epimer (+)-epi-cytoxazone were synthesized starting from (D)-(-)-4-hydroxyphenylglycine. Homologation of the amino acid was achieved via the corresponding aldehyde, by a cyanohydrin reaction. The racemization of highly sensible amido aldehyde was efficiently suppressed when the oxidation of the parent aminoalcohol was performed by a modified Dess-Martin procedure.