Divergolide congeners illuminate alternative reaction channels for ansamycin diversification

Divergolide congeners illuminate alternative reaction channels for ansamycin diversification Biosynthetic Code for Divergolide Assembly in a Bacterial Mangrove Endophyte Divergolides A–D from a Mangrove Endophyte Reveal an Unparalleled Plasticity in ansa‐Macrolide Biosynthesis Studies toward Total Synthesis of Divergolides C and D Structure and Biosynthesis of the Marine Streptomycete Ansamycin Ansalactam A and Its Distinctive Branched Chain Polyketide Extender Unit Structure and Biosynthesis of the Marine Streptomycete Ansamycin Ansalactam A and Its Distinctive Branched Chain Polyketide Extender Unit Ansalactams B–D Illustrate Further Biosynthetic Plasticity within the Ansamycin Pathway Divergolides T–W with Apoptosis-Inducing Activity from the Mangrove-Derived Actinomycete Streptomyces sp. KFD18 Pentaketide Ansamycin Microansamycins A–I from <i>Micromonospora</i> sp. Reveal Diverse Post-PKS Modifications Angucyclines and Angucyclinones from <i>Streptomyces</i> sp. CB01913 Featuring C-Ring Cleavage and Expansion