Structure of cyclizidine (antibiotic M146791) : X-ray crystal structure of an indolizidinediol metabolite bearing a unique cyclopropyl side-chain
Abstract
An unusual indolizidinediol with an α,β:γ,δ-unsaturated cyclopropyl side-chain has been isolated from a new Streptomyces species, and the structure established as (1) by X-ray crystallographic and spectroscopic methods.