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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1657415Generated: October 26, 2026

5,6,7-Trimethoxy-1,2,3,4-tetrahydroisoquinoline → 4-Amino-6,7,8-trimethoxy-2-(5,6,7-trimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl)quinazoline

https://huagongshe.com/reaction/1657415

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5,6,7-Trimethoxy-1,2,3,4-tetrahydroisoquinolineHCID 270529—
Reactant2-Chloro-6,7,8-trimethoxyquinazolin-4-amineHCID 3015804—
Product4-Amino-6,7,8-trimethoxy-2-(5,6,7-trimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl)quinazolineHCID 21416703—

Reaction Steps

The procedure described in Example 1 was followed to prepare the above compound, starting from 4-amino-2-chloro-6,7,8-trimethoxyquinazoline and using 5,6,7-trimethoxy-1,2,3,4-tetrahydroisoquinoline as the reagent of choice on the same molar basis as before. In this particular instance, the final product was obtained as the free base compound, m.p. 193°-195°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03960861
Source datasetuspto-grants-1976_06
ORD IDord-446d14531ab74d25b15b6976d781fe78
Source noteuspto-grants-1976_06