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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1377054Generated: November 3, 2026

Pyridine → HCID 135838164, compound

https://huagongshe.com/reaction/1377054

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantN-bromobutanimideHCID 67184—
ReactantHCID 135838149HCID 135838149—
SolventBenzeneHCID 241—
ProductHCID 135838164HCID 135838164—

Reaction Steps

N-(8-Bromo-1,2,5,6-tetrahydro-9-nitro-1-oxobenzo[f]quinazolin-3-yl)pivalamide (0.23 g, 0.5 mmole) was reacted with N-bromosuccinimide (0.12 g, 0.7 mmole) and pyridine (0.06 ml, 0.8 mmole) in dry benzene (150 ml) in the same manner as in example 2. The crude product was purified by trituration with methanol:water (1:9), followed by filtration and washing (water and methanol) to give, after drying, N-(8-bromo-1,2-dihydro-9-nitro-1-oxobenzo[f]quinazolin-3-yl)pivalamide as a pale yellow solid. (0.20 g, 94%) 1H NMR (DMSO-d6, 200 MHZ) δ: 1.27(s, 9H, t-butyl); 7.76(d, J=9.0 Hz, 1H, Ar); 8.32(d, J=9.0 Hz, 1H, Ar); 8.65(s, 1H, Ar); 10.21(s, 1H, Ar); 11.40(s, 1H, NH); 12.45(br s, 1H, NH).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05663337
Source datasetuspto-grants-1997_09
ORD IDord-7ea45b9dbd7a453c8d12afd585318117
Source noteuspto-grants-1997_09