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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1262145Generated: October 27, 2026

2-[4-(4-Amino-2-methoxy-phenyl)-piperidin-1-yl]-acetamide → 2-(4-{2-Methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-1-yl)-acetamide

https://huagongshe.com/reaction/1262145

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-[4-(4-Amino-2-methoxy-phenyl)-piperidin-1-yl]-acetamideHCID 66711983—
ReactantTrifluoro-methanesulfonic acid 7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-yl esterHCID 86661678—
Product2-(4-{2-Methoxy-4-[7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-ylamino]-phenyl}-piperidin-1-yl)-acetamideHCID 6671193933.7%

Reaction Steps

Trifluoro-methanesulfonic acid 7-(2-methoxy-phenyl)-pyrrolo[2,1-f][1,2,4]triazin-2-yl ester (0.100 g, 0.268 mmol) and 2-[4-(4-Amino-2-methoxy-phenyl)-piperidin-1-yl]-acetamide (0.0882 g, 0.335 mmol) were reacted in an analogous manner to Example 908D at 50° C. for 16 h. The reaction mixture was concentrated, taken up in EtOAc, and washed with brine. The EtOAc layer was dried, filtered over MgSO4, and concentrated. The resulting residue was purified by Gilson RP-HPLC and lyophilized. The product was taken up in EtOAc and washed with NaHCO3 to free-base it to afford title compound (44 mg, 32%). LCMS=487.0 (M+H), HPLC rt=2.500, purity=98%. 1H NMR (400 MHz, (D3C)2SO, δ, ppm): 9.29 (s, 1H), 8.94 (s, 1H), 7.70 (d, J=7.3 Hz, 1H), 7.45 (dd, J=7.3, 7.7 Hz, 1H), 7.37 (s, 1H), 7.19 (d, J=8.3 Hz, 2H), 7.08 (d, J=7.4 Hz, 1H), 6.97 (d, J=8.3 Hz, 1H0, 6.91 (d, J=4.3 Hz, 1H), 6.88 (d, J=4.3 Hz, 1H), 3.76 (s, 3H), 3.42 (s, 3H), 3.31 (s, 2H), 2.89-2.82 (m, 3H), 2.80-2.68 (m, 1H), 2.20-2.05 (m, 2H), 1.72-1.58 (m, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08471005B2
Source datasetuspto-grants-2013_06
ORD IDord-deee6ee85cb14ff0b471e6fa7500a6e2
Source noteuspto-grants-2013_06