IUPAC:(20R)-20-ethyl-6,7-difluoro-20-hydroxy-17-oxa-3,13-diazapentacyclo[11.9.0.0^{2,11}.0^{4,9}.0^{15,21}]docosa-1(22),2,4,6,8,10,15(21)-heptaene-14,18-dione
IUPAC:(20R)-20-ethyl-6,7-difluoro-20-hydroxy-17-oxa-3,13-diazapentacyclo[11.9.0.0^{2,11}.0^{4,9}.0^{15,21}]docosa-1(22),2,4,6,8,10,15(21)-heptaene-14,18-dione