反应详情

Prepared according to the method described in Example 1(a) above from Nα -Boc-Nδ -Cbz-(R)-ornithine (5.0 g; 13 mmol), BOP reagent (6.0 g; 13 mmol), HOBT (1.8 g; 13 mmol), DiPEA (7.1 mL; 40 mmol) and acetonitrile:CH2Cl2 (1:1; 100 mL) followed by (R)-(+)-N,α-dimethylbenzylamine (2.0 mL; 13 mmol), then stirred overnight. After work up the crude product was purified by chromatography on silica gel with EtOAc to provide 6.0 g (91%) of the sub-title compound.

1. customPrepared
2. customAfter work up the crude product was purified by chromatography on silica gel with EtOAc