1',3'-dihydro-1'-(n-propyl)-3',3'dimethyl-6-nitrospiro-[2H-13-benzopyran- 2,2'-(2H)-indoline]

C₂₁H₂₂N₂O₃

Godsi, O.Peskin, U.Kapon, M.Natan, E.Eichen, Y.

Chemical communications (Cambridge, England) (2001) 20 2132-2133

a=12.1910(5)Å   b=12.4340(5)Å   c=12.9160(4)Å

α=101.743(2)°   β=104.914(2)°   γ=90.647(2)°