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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 238994Generated: October 25, 2026

Hydrochloric Acid → Erlotinib Hydrochloride

https://huagongshe.com/reaction/238994

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzenamine, 3-ethynyl-HCID 104682—
Reactant4-Chloro-6,7-bis(2-methoxyethoxy)quinazolineHCID 11289942—
SolventWaterHCID 962—
ProductErlotinib HydrochlorideHCID 17687184.4%

Reaction Steps

5.0 g of 4-chloro-6,7-bis(2-methoxyethoxy) quinazoline was suspended in 75 ml of water and 2.55 g of 3-aminophenyl acetylene was added at 25-30° C. followed by 1.0 ml of 50% hydrochloric acid. The reaction mass was heated at 35- 40° C. for 1 hour. The solid obtained was filtered and washed with water. The product was dried at 40-45° C. to obtain 5.8 g of erlotinib hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642758B2
Source datasetuspto-grants-2014_02
ORD IDord-822db084f00c47e49c48714e4525ecda
Source noteuspto-grants-2014_02