(S)-1-(benzyloxy)-3-(4-(benzyloxy)phenyl)-1-oxopropan-2-yl N2,Nw,Nw'-tris(tert-butoxycarbonyl)-L-argininate                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                                                                                                                            以94%的产率得到(11S,14S)-6,11-bis((tert-butoxycarbonyl)amino)-14-(4-hydroxybenzyl)-2,2-dimethyl-4,12-dioxo-3,13-dioxa-5,7-diazapentadec-5-en-15-oic acid