11-chloro-N-(3-((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10,11,13-pentahydroxy-3,5,8,10,12,14-hexamethyl-15-oxo-1-oxa-6-azacyclopentadecan-6-yl)propyl)dibenzo[b,f]thieno[2,3-d]oxepine-2-carboxamide