Stereocontrolled Synthesis of (+)-Methoxyphenylkainic Acid and (+)-Phenylkainic Acid
作者:Takumi Higashi、Yoichiro Isobe、Hitoshi Ouchi、Hiroto Suzuki、Yuko Okazaki、Tomohiro Asakawa、Takumi Furuta、Toshiyuki Wakimoto、Toshiyuki Kan
DOI:10.1021/ol103131p
日期:2011.3.4
syntheses of (+)-methoxyphenylkainic acid (3) and (+)-phenylkainic acid (4) were achieved using a rhodium carbenoid-mediated intermolecular C−H insertion reaction. Complete stereoselective construction of the kainoid skeleton was accomplished by utilizing the stereochemistry at the C-4 position as a pivotal stereogenic center.
Towards a versatile synthesis of kainoids II: Two methods for establishment of C-4 stereochemistry
作者:Jack E. Baldwin、Samantha J. Bamford、Andrew M. Fryer、Martin P.W. Rudolph、Mark E. Wood
DOI:10.1016/s0040-4020(97)00191-9
日期:1997.4
Benzylic lactone hydrogenolysis and enamide reduction were used to generate protected C-4 aryl substituted kainoid analogues which were deprotected to their corresponding free amino acids. X-ray crystographic data were obtained for the C-4 2-MeOPh- analogue.
Synthesis of new acromelic acid congeners: novel neuroexcitatory amino acids acting on glutamate receptor
作者:Kimiko Hashimoto、Haruhisa Shirahama
DOI:10.1016/s0040-4039(00)78802-2
日期:1991.6
A general synthetic method of acromelic acid congeners was developed. Various C4-substituents of this family was introduced by the substitution reaction of the corresponding tosylate with diaryl copper lithium. Phenyl derivative 11 showed comparable excitatory activity with kainic acid, and o-anisyl derivative 12 had most potent activity in this family.