1-Methylpiperazine → HCID 67155199, compound

Participants

Reaction Steps

Intermediate 87 (802 mg, 1.65 mmol) was dissolved in 10 ml DCM and N-methyl piperazine (0.73 ml, 6.60 mmol) was added followed by DIPEA (0.55 ml, 3.3 mmol) and TBTU (636 mg, 1.98 mmol). After 1 h stirring at RT the solution was evaporated to dryness and purified by silica gel chromatography. The compound was dissolved in DCM, HCl (2 M in diethyl ether (5 ml)) was added and the solvents were evaporated yielding a white powder. Yield: 651 mg, 70%. MS (ES+): m/e=568.

Provenance & Evidence