A general synthetic approach has been developed for the synthesis of a key intermediate (6) that can be elaborated into several ophthalmic prostaglandins and their derivatives. Using these strategy, we have obtained (+/-)-bimatoprost (1) and its analog, (+/-)-homobimatoprost (5).
A general synthetic approach has been developed for the synthesis of a key intermediate (6) that can be elaborated into several ophthalmic prostaglandins and their derivatives. Using these strategy, we have obtained (+/-)-bimatoprost (1) and its analog, (+/-)-homobimatoprost (5).
N-heterocyclic carbenes (NHCs) are well-known as ligands and organocatalysts, but there is no recognition for their catalytic role as a stabilizer through electrostatic interaction rather than electron donation. By utilizing the electrostatic interaction, we herein describe the success of a visible-light-triggered radical–radical cross-coupling of N-alkenoxypyridinium salts and NaI, giving a variety