13,16-dioxa-4-azatetracyclo[15.2.2.1~3,6~.0~12,14~]docosa-6,17,19,20-tetraene-5,22-dione, 7-hydroxy-8-methyl-, (3R,6Z,8S,12R,14R)- InChI=1/C20H23NO5/c1-11-3-2-4-15-16(26-15)10-25-13-7-5-12(6-8-13)9-14-19(23)17(18(11)22)20(24)21-14/h5-8,11,14-16,22H,2-4,9-10H2,1H3,(H,21,24)/b18-17-/t11-,14+,15+,16+/m0/s Macrocidin A rel-(3R,6Z,8S,12R,14R)-7-hydroxy-8-methyl-13,16-dioxa-4-azatetracyclo[15.2.2.1~3,6~.0~12,14~]docosa-1(19),6,17,20-tetraene-5,22-dione