3,4-oxazolidinedicarboxylic acid, 2,2-dimethyl-, 3-(9H-fluoren-9-ylmethyl) 4-(phenylmethyl) ester, (4S)- 4-benzyl 3-(9H-fluoren-9-ylmethyl) 2,2-dimethyl-1,3-oxazolidine-3,4-dicarboxylate InChI=1/C28H27NO5/c1-28(2)29(25(18-34-28)26(30)32-16-19-10-4-3-5-11-19)27(31)33-17-24-22-14-8-6-12-20(22)21-13-7-9-15-23(21)24/h3-15,24-25H,16-18H2,1-2H3/t25-/m0/s