C66H68O10, M(r) = 1021.2, orthorhombic, P2(1)2(1)2(1), a = 11.038(4), b = 14.183(6), c = 18.358(7)Angstrom, V = 2874(2)Angstrom(3), Z = 2, D-x = 1.18g.cm(-3), MoK alpha radiation (lambda = 0.71069 Angstrom). The final R indice is 0.080 for 1033 observed reflections