The preparation of racemic des-hydroxy stachybotrin C is described. Different approaches have been studied. Observations made in the course of the synthesis show the efficiency of the intermolecular cyclization between the diethyl acetal 19 and phenol 12 leading to the benzopyran moiety 17.
The preparation of racemic des-hydroxy stachybotrin C is described. Different approaches have been studied. Observations made in the course of the synthesis show the efficiency of the intermolecular cyclization between the diethyl acetal 19 and phenol 12 leading to the benzopyran moiety 17.
Synthesis of Stachybotrin C and All of Its Stereoisomers: Structure Revision
作者:Maiwenn Jacolot、Mickael Jean、Naresh Tumma、Arnaud Bondon、Srivari Chandrasekhar、Pierre van de Weghe
DOI:10.1021/jo401116r
日期:2013.7.19
We disclose the first total synthesis of stachybotrin C, a potent neuroprotective natural compound. All of the four stereoisomers have been prepared and fully characterized with the aim to attribute the absolute configuration of the two adjacent stereocenters of the stachybotrin C.