24916-52-7 AIDS-166765 AIDS166765 Leucomycin V, 9-O-((2R,5S,6R)-5-(dimethylamino)tetrahydro-6-methyl-2H-pyran-2-yl)-, 3-propanoate Spiramycin III, Foromacidin C, Foromacidine C, Spiramycin 3