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Beilstein J. Org. Chem. 2021, 17, 334–342, doi:10.3762/bjoc.17.31
Graphical Abstract
Figure 1: The clazamycins, and selected bacterial pyrrolizidines of the vinylogous urea type. For consistency...
Figure 2: Key species in the biosynthesis of legonmycins A (3) and B (4), and the pyrrolizixenamides A–D (9–12...
Scheme 1: Preparation of the legonmycin core.
Scheme 2: Hypothesis for the oxidative hydrolysis of diacylated pyrrolizidinone 18 (R = iBu).
Scheme 3: Preparation of C(7a)-functionalized pyrrolizinone derivatives and synthesis of legonmycins A and B.