C24H23NO4, monoclinic, P2(1)/n (no. 14), a = 13.492(6) angstrom, b = 9.259(4) angstrom, c = 15.993(8) angstrom, beta = 94.009(9)degrees, V = 1993.0(16) angstrom(3), Z = 4, R-gt(F) = 0.0409, wR(ref)(F-2) = 0.1201, T = 293(2) K.
[1]Jilin Univ, China Japan Union Hosp, Dept Vasc Surg, Changchun 130033, Peoples R China.
[2]Jilin Univ, Hosp 2, Dept Ophthalmol, Changchun 130041, Peoples R China.
[3]Karolinska Inst, St Eriks Eye Hosp, Polhemsgatan 50, SE-11282 Stockholm, Sweden.