Multikilogram Synthesis of a Potent Dual Bcl-2/Bcl-xL Antagonist. 2. Manufacture of the 1,3-Diamine Moiety and Improvement of the Final Coupling Reaction

This paper describes the synthesis of kilogram quantities of the sulfonamide moiety 3 involved in a coupling reaction with acid moiety 2 to provide batches of drug candidate 1 for preclinical studi...