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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 442124Generated: October 25, 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/442124

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 regent 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 numberUS04044136
Source datasetuspto-grants-1977_08
ORD IDord-8bd2c6be9fcd412591a7f0c51c5ad37e
Source noteuspto-grants-1977_08