Showing structure for 4-methoxy-3-methyl-5-[(1r,9r,10r,11r,12s,13e)-12-methyl-14,15-dioxa-5-azatetracyclo[7.5.1.0¹,¹¹.0⁵,¹⁰]pentadecan-13-ylidene]furan-2-one