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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1432983Generated: November 1, 2026

Trifluoroacetic acid → 4-(4-Amino-quinazolin-7-ylmethyl)-2-(S)-methoxymethyl-3-oxo-piperazine-1-carboxylic acid (4-chloro-phenyl)-amide

https://huagongshe.com/reaction/1432983

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant4-Chlorophenyl IsocyanateHCID 7693—
Reactant1-(4-Amino-quinazoline-7-ylmethyl)-3-methoxymethyl-piperazine-2-oneHCID 17985223—
Product4-(4-Amino-quinazolin-7-ylmethyl)-2-(S)-methoxymethyl-3-oxo-piperazine-1-carboxylic acid (4-chloro-phenyl)-amideHCID 53909294—

Reaction Steps

The title compound is prepared as described in EXAMPLE 436 using 1-(4-amino-quinazoline-7-ylmethyl)-3-methoxymethyl-piperazine-2-one, EXAMPLE 75, and 4-chlorophenyl isocyanate. 1H NMR (DMSO-d6, 300 MHz) δ9.77 (bs, 2H), 8.81 (s, 1H), 8.70 (s, 1H), 8.40 (d, 1H), 7.64 (d, 1H), 7.61 (s, 1H), 7.49 (d, 2H), 7.28 (d, 2H), 4.88 (m, 1H), 4.80 (AB, 2H), 4.19 (m, 1H), 3.96 (m, 1H), 3.74-3.42 (m, 4H), 3.28 (s, 3H). ESI MS, [M+H]+=455,457 (Cl pattern). Anal. (C22H23ClN6O3.TFA.1.5H2O) C, H, N.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07612075B2
Source datasetuspto-grants-2009_11
ORD IDord-b6ef8c62420c4e4792e3289df1f143d5
Source noteuspto-grants-2009_11