Triethylamine → HCID 118230347, compound

Participants

Reaction Conditions

Reaction Steps

To a 25 mL pear flask were added tert-butyl (S)-4-(5-(1-aminoethyl)-1-methyl-1H-pyrrolo[3,2-b]pyridin-6-yl)piperazine-1-carboxylate (0.076 g, 0.21 mmol) and 2,4-diamino-6-chloropyrimidine-5-carbonitrile (0.054 g, 0.32 mmol) in DMSO (1 mL) to give a yellow suspension. Triethylamine (0.088 mL, 0.63 mmol) was added and the mixture was heated to 95° C. for 2 hours. The reaction appeared to stall so 1 equivalent of triethylamine was added. After a total of 4 hours of heating, the mixture was cooled and the reaction mixture was partitioned between saturated NaHCO3 and ethyl acetate. The aqueous layer was extracted with ethyl acetate. The organic layers were combined, dried over MgSO4, filtered, and concentrated. The crude product was purified by preparative HPLC (acid mode, 20-25% ACN/water gradient). The product-containing fractions were combined, neutralized with a small amount of saturated NaHCO3, concentrated in vacuo to remove ACN, and then extracted with EtOAc. The organic layers were combined, dried over MgSO4, filtered, and concentrated in vacuo to give the title compound as a pale beige solid (37 mg, 36%). 1H NMR (400 MHz, CDCl3) δ ppm 1.43 (s, 11H), 1.87 (br s, 2H), 2.72 (br s, 2H), 2.97 (br s, 2H), 3.70 (s, 3H), 4.80-5.11 (m, 4H), 5.92 (br s, 1H), 6.59 (d, J=2.27 Hz, 1H), 6.76 (d, J=6.06 Hz, 1H), 7.16 (d, J=2.78 Hz, 2H), 7.32 (s, 1H); ESI-MS m/z [M+H]+ calc'd for C24H32N10O2, 493. found 493.

Provenance & Evidence