Dimethylformamide → HCID 25098060, compound

Participants

Reaction Steps

To the solution of 7-(2-Amino-5-cyano-phenyl)-2,7-diaza-spiro[4.5]decane-2-carboxylic acid tert-butyl ester was added 2-thiophen-2-yl-thiazole-4-carboxylic acid (product of step 2, 0.98 eq,) in DMF (1 mL). Then, a solution of N,N-diisopropylethylamine (1.5 eq) HATU (1.5 eq) was added. The resulting reaction was stirred at room temperature for 15 hours and then concentrated and treated with 3 mL of (4:1) TFA:H2SO4. The reaction mixture was concentrated and purified using reverse phase HPLC to provide 2-Thiophen-2-yl-thiazole-4-carboxylic acid {2-[3-(2-amino-ethyl)-piperidin-1-yl]-4-carbamoylmethyl-phenyl}-amide. HPLC-MS RT=3.13 min, mass calculated for formula C23H25N5O2S2 467.14, observed LCMS m/z 468.21 (M+H).

Provenance & Evidence