(R)-2-{[2-((5E,7E)-(2R,4S)-9-Azido-2,4-bis-methoxymethoxy-6-methyl-nona-5,7-dienyl)-oxazole-4-carbonyl]-amino}-propionic acid methyl ester

(9E,14E,16E)-(4R,7R,8R,18S,20R)-7-Isopropyl-18,20-bis-methoxymethoxy-4,8,16-trimethyl-6,23-dioxa-3,12,25-triaza-bicyclo[20.2.1]pentacosa-1(24),9,14,16,22(25)-pentaene-2,5,11-trione

(R)-2-({2-[(5E,7E)-(2R,4S)-9-((E)-(4R,5R)-5-Hydroxy-4,6-dimethyl-hept-2-enoylamino)-2,4-bis-methoxymethoxy-6-methyl-nona-5,7-dienyl]-oxazole-4-carbonyl}-amino)-propionic acid methyl ester