Trifluoroacetic acid → HCID 59548462, compound

Participants

Reaction Conditions

Reaction Steps

N,N-bis(4-methoxybenzyl)-4-(2-(6-methoxypyridin-3-ylamino)-5-(4-(methylsulfonyl)benzyl)pyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (412 mg, 0.574 mmol) was suspended in trifluoroacetic acid (Aldrich redistilled 99+%, 6.0 mL, 78 mmol) and the flask was fitted with a reflux condenser and put in a preheated oil bath (75° C.) and the reaction was stirred overnight. Then, the reaction was cooled to room temperature and concentrated and diluted with saturated sodium bicarbonate and then with 5 N NaOH to raise the pH to about 8-9. The suspension was filtered, and the solid was washed with water. The filtrate was discarded, and the solid was collected with DCM and MeOH, concentrated, treated with MeOH, and filtered. The solid was washed with MeOH. The solid was not >95% pure by HPLC, so the filtrate and solid were combined, concentrated, and purified on a silica gel column (30:1 to 20:1 DCM/MeOH). The fractions with product were collected, concentrated, treated with MeOH, and filtered. The yellow solid was washed with MeOH, collected, and dried under high vacuum at room temperature overnight to give 4-(2-(6-methoxypyridin-3-ylamino)-5-(4-(methylsulfonyl)benzyl)pyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (126.1 mg, 46% yield) as a yellow powder. 1H NMR (CDCl3, 400 MHz) δ 11.64 (s, 1H), 8.65 (d, J=2.15 Hz, 1H), 8.36 (d, J=2.35 Hz, 1H), 8.17 (d, J=1.56 Hz, 1H), 8.11 (dd, J=8.90 Hz, 2.25 Hz, 1H), 7.88 (d, J=8.22 Hz, 2H), 7.42 (d, J=7.82 Hz, 2H), 6.78 (d, J=8.80 Hz, 1H), 5.36 (br s, 2H), 4.04 (s, 2H), 3.95 (s, 3H), 3.04 (s, 3H), 2.56 (s, 3H). m/z (ESI, +ve ion) 478 (M+H)+.

Provenance & Evidence