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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1657414Generated: October 25, 2026

7,8-Dimethoxy-1,2,3,4-tetrahydroisoquinoline → 4-Amino-2-(7,8-dimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl)-6,7,8-trimethoxyquinazoline

https://huagongshe.com/reaction/1657414

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7,8-Dimethoxy-1,2,3,4-tetrahydroisoquinolineHCID 179606—
Reactant2-Chloro-6,7,8-trimethoxyquinazolin-4-amineHCID 3015804—
Product4-Amino-2-(7,8-dimethoxy-1,2,3,4-tetrahydroisoquinolin-2-yl)-6,7,8-trimethoxyquinazolineHCID 21416736—

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 7,8-dimethoxy-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 isolated as the free base compound, m.p. 190°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03960861
Source datasetuspto-grants-1976_06
ORD IDord-c3d30dc6eeae4803b98c06b68adf49b4
Source noteuspto-grants-1976_06