220339-89-9Relevant academic research and scientific papers
Stereocontrolled syntheses of α-C-mannosyltryptophan and its analogues
Nishikawa, Toshio,Koide, Yuya,Kajii, Shigeo,Wada, Kyoko,Ishikawa, Miyuki,Isobe, Minoru
, p. 687 - 700 (2007/10/03)
The total synthesis of α-C-mannosyltryptophan (C-Man-Trp), a naturally occurring C-glycosylamino acid, was achieved from a commercially available α-methyl-D-mannoside in 10 steps including the following key steps: the C-glycosidation of a mannose derivative with a stannylacetylene, Castro indole synthesis, and Sc(ClO4)3-promoted coupling with L-serine-derived aziridine carboxylate. The glucose- and galactose-analogues of C-Man-Trp were also synthesized in a similar manner. Conformational analyses of the synthesized C-glycosyltryptophan and its synthetic intermediate are briefly discussed.
Synthesis of a α-C-mannosyltryptophan derivative, naturally occurring C-glycosyl amino acid found in human ribonuclease 1
Nishikawa, Toshio,Ishikawa, Miyuki,Isobe, Minoru
, p. 123 - 125 (2007/10/03)
The title compound was synthesized from D-mannose, based on a novel C-glycosidation with tinacetylene, Castro-indole synthesis, and amino acid synthesis via dehydrotryptophan. Thieme.
