3,11-dibenzoyl-6,13dimethyl-7,14-dioxo-2,10-diphenyl-1,9-dioxa- 2,6,10,13-tetraazaspiro[4.2.2.4]tetradecane

C₃₆H₃₂N₄O₆

Rigolet, SéverinneMélot, Jean MarieVébrel, JoelChiaroni, AngèleRiche, Claude

Journal of the Chemical Society, Perkin Transactions 1 (2000) 7 1095

a=8.932(2)Å   b=9.670(3)Å   c=10.105(2)Å

α=100.95(2)°   β=105.61(2)°   γ=106.37(2)°