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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1432959Generated: November 2, 2026

Trifluoroacetic acid → HCID 53794364, compound

https://huagongshe.com/reaction/1432959

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 22394336HCID 22394336—
Reactant1-(4-Aminoquinazoline-7-ylmethyl)piperazine-2-one bishydrochlorideHCID 69024342—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 53794364HCID 53794364—

Reaction Steps

To a solution of 1-(4-aminoquinazoline-7-ylmethyl)piperazine-2-one bishydrochloride (1.84 g, 5.73 mmol), EXAMPLE 72, in DMF (20 mL) is added 2-bromomethyl-6-chloro-benzo[b]thiophene, EXAMPLE 5, (1.5 g, 5.73 mmol) and K2CO3 (4.0 g, 28.7 mmol). The solution is stirred for 16 hours. After this time, the solution is diluted with water. The solution is acidified with trifluoroacetic acid. The product is purified by RP-HPLC eluting in a gradient of 10% CH3CN/H2O (0.1% TFA) to 50% CH3CN/H2O (0.1% TFA). The appropriate collected fractions are lyopholized to afford the title compound as a white solid. 1H NMR (d6-DMSO, 300 MHz) δ9.78 (bs, 3H), 8.82 (s, 1H), 8.34 (d, 1H), 8.07 (s, 1H), 7.81 (d, 1H), 7.63 (d, 1H), 7.51 (s, 1H), 7.32 (m, 2H), 4.71 (s, 2H), 3.95 (s, 2H), 3.28 (m, 4H), 2.80 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07612075B2
Source datasetuspto-grants-2009_11
ORD IDord-d1f7f230aedc41d0bb697d74b7e3ffc2
Source noteuspto-grants-2009_11