{(1R,2R,4S)-4-[(2R)-2-{(12S,42R,43R,46S,6S,7E,9E,11E,13S,15R,17R,18R,19E,21R,24S)-42,18-Dihydroxy-6,17-dimethoxy-43,7,13,15,19,21-hexamethyl-2,3,16,22,26-pentoxo-25-oxa-1(1,2)piperidina-4(2,6)oxanacyclohexacosaphan-7,9,11,19-tetraen-24-yl}propyl]-2-methoxycyclohexan-1-yl}(3-hydroxy-2-hydroxymethyl-2-methylpropanoat)