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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 271291Generated: October 30, 2026

Trifluoroacetic acid → HCID 11504069, compound

https://huagongshe.com/reaction/271291

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantHCID 59835165HCID 59835165—
SolventDichloromethaneHCID 6344—
ProductHCID 11504069HCID 11504069—

Reaction Steps

N4-[3-Chloro-4-(pyridin-2-ylmethoxy)-phenyl]-N6-(4,5,6,6a-tetrahydro-3aH-pyrrolo[3,4-d]oxazol-2-yl)-quinazoline-4,6-diamine is prepared from 2-{4-[3-Chloro-4-(pyridin-2-ylmethoxy)-phenylamino]-quinazolin-6-ylamino}-3a,4,6,6a-tetrahydro-pyrrolo[3,4-d]oxazole-5-carboxylic acid tert-butyl ester by standard BOC deprotection methods using TFA in methylene chloride. MS APCI (+) m/z 488, 490 (M+1, Cl pattern) detected; 1H NMR (400 mHz, CD3OD) δ 8.56 (d, 1H), 8.44 (s, 1H), 8.21 (br. s, 1H), 7.91 (m, 2H), 7.70 (m, 2H), 7.63 (d, 1H), 7.57 (d, 1H), 7.39 (m, 1H), 7.16 (d, 1H), 5.28 (s, 2H), 5.17 (m, 1H), 4.78 (m, 1H), 3.34 (d, 1H), 3.16 (d, 1H), 2.84 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07452895B2
Source datasetuspto-grants-2008_11
ORD IDord-7776fa7e68624c62b26814e6c8282250
Source noteuspto-grants-2008_11