Unnatural natural triterpenes produced by altering isoleucine into alanine at position 261 in hopene synthase and the importance of having the appropriate bulk size at this position for directing the stereochemical destiny during the polycyclization cascadeElectronic supplementary information (ESI) available: EIMS and NMR assignments. See http://www.rsc.org/suppdata/cc/b0/b000711k/
Abstract
Incubation of