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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 657225Generated: October 30, 2026

Phenyl isocyanate → HCID 58770774, compound

https://huagongshe.com/reaction/657225

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl isocyanateHCID 7672—
Reactant6,7-Dimethoxy-4-(piperidin-4-yl)quinazolineHCID 59551734—
SolventDimethylformamideHCID 6228—
ProductHCID 58770774HCID 5877077427%

Reaction Steps

A solution of 6,7-dimethoxy-4-piperidin-4-yl-quinazoline (30 mg, 0.110 mmol), as prepared in Example 1d, in DMF (1 mL) was treated with isocyanato-benzene (19.6 mg, 0.165 mmol) at RT overnight. The reaction was then partitioned between EtOAc (10 mL) and H2O (10 mL). The organic phase was dried over Na2SO4 and concentrated in vacuo. Purification by prep tlc (1:9 MeOH/DCM) afforded the title compound as a yellow solid (11.4 mg, 27%). 1H NMR (300 MHz, CDCl3) δ 9.09 (s, 1H), 7.37 (m, 6H), 7.06 (m, 1H), 6.42 (br s, NH), 4.31-4.27 (m, 2H), 4.08 (s, 6H), 3.62 (m, 1H), 3.19 (m, 2H), 2.17 (m, 2H), 2.04-1.98 (m, 2H); LC/MS (ESI): calcd mass 392.2, found 393.3 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08071768B2
Source datasetuspto-grants-2011_12
ORD IDord-7dd41db5d881408d960b6757b505976c
Source noteuspto-grants-2011_12