Song, Zhiguo J Synthesis of vaniprevir (MK-7009): lactamization to prepare a 20-membered [corrected] macrocycle. [electronic resource] - The Journal of organic chemistry Oct 2011 - 7804-15 p. digital Publication Type: Journal Article ISSN: 1520-6904 Standard No.: 10.1021/jo2011494 doi Subjects--Topical Terms: CatalysisChemistry Techniques, Synthetic--methodsCyclizationCyclopropanesHydrogenationIndoles--chemical synthesisIsoindolesLactams--chemistryLactams, MacrocyclicLeucine--analogs & derivativesMacrocyclic Compounds--chemistryPalladium--chemistryProline--analogs & derivativesSulfonamides