Showing structure for 2-hydroxy-1-[(4r,12r,16r,17s,18s,20s)-16-methyl-15-oxa-1,11-diazahexacyclo[15.3.1.0⁴,¹².0⁴,²⁰.0⁵,¹⁰.0¹³,¹⁸]henicosa-5,7,9,13-tetraen-11-yl]ethanone