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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1581982Generated: October 25, 2026

Triethylamine → 4-(2-Indanylamino)-5,6-dimethylthieno[2,3-d]pyrimidine

https://huagongshe.com/reaction/1581982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantPhosphorus oxychlorideHCID 24813—
Reactant2-AminoindaneHCID 76310—
ReactantHCID 178435036HCID 178435036—
SolventEthanolHCID 702—
Product4-(2-Indanylamino)-5,6-dimethylthieno[2,3-d]pyrimidineHCID 2271961464%

Reaction Steps

Using 4-hydroxy-5,6-dimethylthieno[2,3-d]pyrimidine (180 mg, 1.0 mmol), phosphorus oxychloride (1.0 ml), 2-aminoindan (270 mg, 2.0 mmol), triethylamine (0.84 ml, 6.0 mmol) and dry ethanol (5 ml), a similar procedure to b) in Example 19 was carried out. The product obtained was purified by silica gel chromatography (hexane:ethyl acetate=2:1) to obtain the title compound (190 mg, 0.64 mmol) having the following physical properties:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06734180B1
Source datasetuspto-grants-2004_05
ORD IDord-dbf3b69339bd42049c96238817d0dc92
Source noteuspto-grants-2004_05