. "1-[14-hydroxy-4-methyl-(1S,5R,13R,14S,17R)-12-oxa-4-azapentacyclo[9.6.1.01,13.05,17.07,18]octadeca-7(18),8,10,15-tetraen-10-yl]-1-ethanone" . "4" . . . . . .