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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 271292Generated: October 31, 2026

Trifluoroacetic acid → HCID 67014877, compound

https://huagongshe.com/reaction/271292

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantHCID 68943067HCID 68943067—
SolventDichloromethaneHCID 6344—
ProductHCID 67014877HCID 67014877—

Reaction Steps

(R)-1-((S)-2-(4-(3-chloro-4-(thiazol-2-ylmethoxy)phenylamino)quinazolin-6-ylamino)-4,5-dihydrooxazol-4-yl)ethanol is prepared from (1R, 4S)-N6-[4-(1-tert-butoxyethyl)-4,5-dihydrooxazol-2-yl]-N4-[3-chloro-4-(thiazol-2-ylmethoxy)-phenyl]-quinazoline-4,6-diamine by standard deprotection methods using TFA in methylene chloride. MS ESI (+) m/z 497, 499 (M+1, Cl pattern) detected; 1H NMR (400 mHz, DMSO-D6) δ 9.53 (s, 1H), 8.47 (s, 1H), 8.08 (d, 1H), 7.87 (d, 1H), 7.80 (d, 1H), 7.76 (dd, 1H), 7.66 (m, 2H), 7.33 (d, 1H), 5.55 (s, 2H), 4.81 (m, 1H), 4.37 (m, 1H), 4.20 (m, 1H), 3.83 (m, 1H), 3.63 (m, 1H), 1.06 (d, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07452895B2
Source datasetuspto-grants-2008_11
ORD IDord-591380dc88ea487eb4adc8bb4db7dff5
Source noteuspto-grants-2008_11