Diethyl Ether → HCID 178427505, compound

Participants

Reaction Steps

A solution of Boc-D-Lys(Tfa)-NMeArg(Tos)-Gly-OBzl (11.00 g, 13.5 mmol) in methanol (200 ml) was placed in a Parr shaker bottle, purged with N2 for 10 minutes, and treated with 10% palladium on carbon catalyst (10% Pd/C, 3.6 g). The shaker bottle was further purged with 7 pressurization-evacuation cycles, repressurized, and allowed to shake 90 minutes, during which time the calculated amount of hydrogen was consumed. The catalyst was removed by filtration through a bed of Celite and the filtrate was concentrated under reduced pressure yielding a solid. Trituration with refluxing ethyl ether (75 ml) gave pure product (9.18 g, 94%) as a colorless solid. DCI-MS: [M+H]=724.

Provenance & Evidence