InChI=1/C27H34N2O5/c1-16(2)23(25(31)34-27(4,5)6)29-24(30)17(3)28-26(32)33-15-22-20-13-9-7-11-18(20)19-12-8-10-14-21(19)22/h7-14,16-17,22-23H,15H2,1-6H3,(H,28,32)(H,29,30 tert-butyl N-[(9H-fluoren-9-ylmethoxy)carbonyl]alanylvalinate valine, N-[(9H-fluoren-9-ylmethoxy)carbonyl]alanyl-, 1,1-dimethylethyl ester