Synthesis of the C1–C27 Fragment of Stambomycin D Validates Modular Polyketide Synthase-Based Stereochemical Assignments
作者:Jieyan Lim、Venkaiah Chintalapudi、Haraldur G. Gudmundsson、Minh Tran、Alice Bernasconi、Araceli Blanco、Lijiang Song、Gregory L. Challis、Edward A. Anderson
DOI:10.1021/acs.orglett.1c02650
日期:2021.10.1
are a family of bioactive macrolides isolated from Streptomyces ambofaciens. Aside from two stereocenters installed through cytochrome P450 oxidations, their stereochemistry has been predicted by sequence analysis of the polyketide synthase. We report a synthesis of the C1–C27 fragment of stambomycin D, the spectroscopic data of which correlates well with that of the natural product, further validating
stambomycins 是从Streptomyces ambofaciens 中分离出来的生物活性大环内酯类。除了通过细胞色素 P450 氧化安装的两个立体中心外,它们的立体化学还通过聚酮合酶的序列分析进行了预测。我们报告了 stambomycin D 的 C1-C27 片段的合成,其光谱数据与天然产物的光谱数据密切相关,进一步验证了预测序列分析作为复杂聚酮化合物天然产物立体化学分配的有力工具。