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Updated: May 14, 2026

Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones
Published on: February 7, 2019
Total synthesis of Calothrixin A and B via C-H activation
Nagarajan Ramkumar1, Rajagopal Nagarajan
1School of Chemistry, University of Hyderabad, Hyderabad 500046, India.
Abstract:
Bioactive indolo[3,2-j]phenanthridine alkaloids Calothrixin A and B have been synthesized by exploiting Pd-catalyzed cross-coupling reaction via C-H activation as a key step starting from 4-methoxycarbazole.
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