N-((2s,3s,4s,6r)-2-(((2r,3s,4r,5s,8r,10r,11r,12s,13s,14r)-2-ethyl-3,4,10-trihydroxy-13-(((2r,4r,5s,6s)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2h-pyran-2-yl)oxy)-3,5,8,10,12,14-hexamethyl-7-Nitroso-15-oxo-1-oxa-7-azacyclopentadecan-11-yl)oxy)-3-hydroxy-6-methyltetrahydro-2h-pyran-4-yl)-n-propylnitrous amide
