4-Methylmorpholine → HCID 178427372, compound

Participants

Reaction Steps

A solution of 1-(Toluene-4-sulfonyl)-1H-pyrrole-3-carboxylic acid (0.023 g, 0.085 mmol) in NMP (850 l) is added to PS-carbodiimide (190 mg of 1.3 mmol/g loading, 0.24 mmol), followed by a solution of 3,5-Diamino-6-chloro-pyrazine-2-carboxylic acid [1,3,8-triaza-spiro[4.5]dec-(2E)-ylidene]-amide dihydrochloride (Ex. 38) (0.08 mmol) and N-methyl morpholine (8 l, 0.08 mmol) in NMP (1 ml), and the resulting reaction mixture is shaken at room temperature. The reaction mixture is filtered and the resin is washed with NMP (1 ml). The collected filtrate is concentrated in vacuo and the residues are purified by mass-directed preparative HPLC. The purified fractions are evaporated under vacuum to afford the title compound; [M+H]+ 572.08

Provenance & Evidence