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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 71560Generated: October 26, 2026

Lithium Hydroxide → N4-(4-tert-butylphenyl)-N2-(2-carboxybenzofuran-5-yl)-5-fluoro-2,4-pyrimidinediamine

https://huagongshe.com/reaction/71560

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantN4-(4-tert-butylphenyl)-5-fluoro-N2-(2-methoxycarbonylbenzofuran-5-yl)-2,4-pyrimidinediamineHCID 22060304—
ReactantN4-(4-tert-butylphenyl)-5-fluoro-N2-(2,3-dihydro-2-carboxybenzofuran-5-yl)-2,4-pyrimidinediamineHCID 22060366—
ProductN4-(4-tert-butylphenyl)-N2-(2-carboxybenzofuran-5-yl)-5-fluoro-2,4-pyrimidinediamineHCID 22060444—

Reaction Steps

In a manner similar to the preparation of N4-(4-tert-butylphenyl)-5-fluoro-N2-[2,3-dihydro-2-(carboxy)benzofuran-5-yl]-2,4-pyrimidinediamine, LiOH treatment with N4-(4-tert-butylphenyl)-5-fluoro-N2-(2-methoxycarbonylbenzofuran-5-yl)-2,4-pyrimidinediamine gave N4-(4-tert-butylphenyl)-N2-(2-carboxybenzofuran-5-yl)-5-fluoro-2,4-pyrimidinediamine. 1H NMR (CD3OD): δ 9.3 (bd, 2H), 8.25 (s, 1H), 8.10 (s, 1H), 7.65-7.30 (m, 5H), 1.25 (s, 9H); 19F NMR (CD3OD): −21844; LCMS: ret. time: 23.32 min.; purity: 100%; MS (m/e): 421 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822685B2
Source datasetuspto-grants-2014_09
ORD IDord-2567945568a44014a5625630c10324d9
Source noteuspto-grants-2014_09