106750-01-0Relevant articles and documents
A divergent strategy to synthesize gabosines featuring a switchable two-way aldol cyclization
Yang, Xing,Yuan, Po,Shui, Feng,Zhou, Yuqin,Chen, Xiaochuan
, p. 4061 - 4072 (2019/04/30)
Gabosines and their natural analogues, belonging to C7 carbasugars, have attracted great attention in synthesis due to their rich structural variety and promising biological activities. A new diversity-oriented approach for the gabosine-type carbasugars based on a tunable regioselective aldol cyclization of flexible precursor 2 is explored. Two cyclization modes (A and B) of the precursor can be well controlled by switching promoters to selectively produce two resulting cyclohexa(e)nones 3 and 10, both of which are versatile intermediates for various C7 carbasugars. After the conversion of 3 to eight natural carbasugars, the utility of intermediate 10 is illustrated by the first synthesis of (-)-gabosine L, as well as the new synthesis of (-)-gabosine A, (-)-gabosine B, (-)-gabosine N and (-)-gabosine O. The chemical structure and the absolute configuration of (-)-gabosine L are confirmed by its total synthesis.
Syntheses of gabosine A, B, D, and E from allyl sulfide derived from (-)-quinic acid
Shinada, Tetsuro,Fuji, Toshiyuki,Ohtani, Yasuhiro,Yoshida, Yasutaka,Ohfune, Yasufumi
, p. 1341 - 1343 (2007/10/03)
An efficient conversion of allyl sulfide 6 prepared from (-)-quinic acid (5) to gabosines was achieved by a series of sequential reactions: i) Mislow-Evans rearrangement, ii) SeO2 oxidation, iii) conjugate addition of sodium hydroxide or sodium