Bengazoles C−G from the Sponge <i>Jaspis</i> sp. Synthesis of the Side Chain and Determination of Absolute Configuration
作者:Philip A. Searle、Rowena K. Richter、Tadeusz F. Molinski
DOI:10.1021/jo952261a
日期:1996.1.1
known bengazoles A and B, comprise a homologous series of n, iso, and anteiso fatty acid esters (C(13)-C(16)) of the same heterocyclic bis(oxazolyl)methanol parent. The complete relative and absolute configurations of the bengazoles were determined by application of the modified Mosher method and interpretation of exciton coupling in the CD spectra of the tetra-p-bromobenzoate derivatives of bengazole
从Jaspis属的海洋海绵中分离并充分鉴定了五种新的抗真菌苯并恶唑(CG)。苯并恶唑CG与已知的苯并恶唑A和B组成相同杂环双(恶唑基)甲醇母体的n,异和反异脂肪酸同系物(C(13)-C(16))。通过应用改良的Mosher方法并通过对苯唑A的四对溴苯甲酸酯衍生物和由L合成的七步合成的模型四氢萘的CD光谱中的激子耦合进行解释,确定了苯唑的相对和绝对构型。 -重点