(1[alpha],2[beta],3[alpha],6[alpha],7[beta],8[alpha],9[beta],13[beta])-9,13-Dibromo-11-methyl-14,15-dioxa-11-azapentacyclo[6.5.1.1^3,6.0^2,7.0^9,13]pentadec-4-ene-10,12-dione

The crystal structure of the minor 2:1 isomer of the title compound, C₁₃H₁₁Br₂NO₄, formed by the reaction of furan with N-methyl-3,4-dibromomaleimide is reported.

-1