8-Oxatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),3,5,10,12-hexaene-5-sulfonamide 1g

8-Oxatricyclo[7.4.0.0,2,7]trideca-1(9),2(7),3,5,10,12-hexaene-5-sulfonamide 1g