反应详情

A mixture of 6 mg (0.024 mmol) 6-propoxy-5-pyrrolidin-1-yl-pyrazine-2-carboxylic acid, 9.3 mg (0.029 mmol) TBTU, 9.3 mg (0.072 mmol) DIPEA and 4.2 mg (0.036 mmol) (S)-2-amino-4-methyl-pentan-1-ol (commercially available) in 1 mL DMF was shaken at room temperature for 16 h. After addition of formic acid the mixture was subjected to purification by preparative HPLC on reversed phase eluting with a gradient formed from acetonitrile, water and formic acid. The combined product fractions were evaporated to yield 2 mg (24%) of the title compound. m/z (ES+): 351.5 (M+H).

1. customwas subjected to purification by preparative HPLC on reversed phase
2. washeluting with a gradient
3. customformed from acetonitrile, water and formic acid
4. customThe combined product fractions were evaporated