14-methyl-7-{2-methyl-3-oxospiro[7-oxa-2,4,13-triazatetracyclo[6.6.2.04,15.012,16]hexadeca-1(15),8(16),9,11,13-pentaene-5,1'-cyclopropane]-9-yl}spiro[9-oxa-3,12,14-triazatetracyclo[6.6.2.04,16.012,15]hexadeca-1(15),2,4(16),5,7-pentaene-11,1'-cyclopropane]-13-one