HCID 10722812, compound → HCID 131717384, compound

Participants

Reaction Steps

To a solution of cyclo(-DTrp-DAsp-Lys-DVal-Leu-) (10.5 mg) which was prepared in Example 4, and formic pivalic anhydride(10 ml) in DMF(0. 5ml) was added TEA(10 μl). The reaction mixture was stirred at room temperature for 1 h and concentrated in vacuo. The residue was triturated with water (2 ml) to give the title compound(7.8 mg) as an off-white powder.

Provenance & Evidence