7-Methyl-3-(3-methyl-butyl)-4-oxo-10-oxa-3-aza-tricyclo[5.2.1.0*1,5*]dec-8-ene-2,6-dicarboxylic acid 2-benzylamide 6-[(5-methyl-isoxazol-3-yl)-amide] MLS000075688 SMR000006542