Alternate Cyclization Cascade Initiated by Substrate Isomer in Multiproduct Terpene Synthase from <i>Medicago truncatula</i>
作者:Abith Vattekkatte、Stefan Garms、Wilhelm Boland
DOI:10.1021/acs.joc.6b02696
日期:2017.3.17
isolated from Medicago truncatula generates 27 opticallypure products from its natural substrate (2E,6E)-farnesyl diphosphate (FDP). In order to study the promiscuity of MtTPS5, (2Z,6E)-FDP, an analogue of presumptive reaction intermediates from natural reaction cascade, was utilized as a substrate. This stereoisomer induced a novel cyclization pathway leading to sesquiterpenes based on humulane, amorphene
作者:Adeleke A Kasali、Olusegun Ekundayo、Claudia Paul、Wilfried A König
DOI:10.1016/s0031-9422(02)00006-7
日期:2002.4
sesquiterpene hydrocarbons. Their EI mass spectra resembled the mass spectrum of beta-ylangene (1) but the retention indices of the new compounds differed markedly from this known compound. After isolation of the new compounds by preparative GC their investigation by one- and two-dimensional NMR techniques resulted in the identification of 6-epi-alpha-cubebene (2) (minor constituent, 1.5%) and 6-epi-beta-cubebene