Showing structure for (4r,12s,13r,14r,19r,21s)-11-acetyl-9-hydroxy-8-methoxy-15-oxa-1,11-diazahexacyclo[16.3.1.0⁴,¹².0⁴,²¹.0⁵,¹⁰.0¹³,¹⁹]docosa-5,7,9,17-tetraen-14-yl acetate