PROPANAMIDE,2-(METHYLAMINO)-N-[(1S)-2- METHYL-1-[[(3AS,13S,15AS)-3,3A,11,12,13,14,- 15,15A-OCTAHYDRO-12,15-DIOXO-13-BENZYL- 5,8-ETHENOPYRROLO[3,2-B][1,5,8]OXADIAZACYCLOTETRADECIN- 1(2H)-YL]CARBONYL]PROPYL]- ,(2S)-