2-Oxa-11,14-diazatricyclo(15.2.2.1(sup 3,7))docosa-3,5,7(22),17,19,20-hexaene-15-carboxylic acid, 9-amino-12-(2-amino-1-hydroxy-2-oxoethyl)-10,13-dioxo-4-methoxy-, (9S-(9R*,12R*(S*),15R*))- 93375-51-0 Of 4949-I Of 4949I