Total asymmetric synthesis of sperabillins B and DElectronic supplementary information (ESI) available: experimental details. See http://www.rsc.org/suppdata/cc/b3/b305740b/
作者:Stephen G. Davies、Richard J. Kelly、Anne J. Price Mortimer
DOI:10.1039/b305740b
日期:——
A consise route to the core fragment of sperabillins B and D, methyl (3R,5R,6R)-3,6-diamino-5-hydroxyheptanoate, has been developed with a subsequent novel protection strategy allowing the total asymmetric synthesis of sperabillins B and D.
A biomimetictotalsynthesis of racemic homodimericin A was achieved in seven steps, including two cascade reactions. Aqueous buffer solutions are found to help both the oxidative dimerization cascade and the intramolecular Diels–Alder cascade. This synthetic sequence validates key steps in the biogenetic proposal of homodimericin A.