HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 989692Generated: October 29, 2026
1-Butanol → Ethyl-2-[(2-amino-5,6,7,8-tetrahydroquinazoline-4-yl)amino]acetate
https://huagongshe.com/reaction/989692
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1-Butanol | HCID 263 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Glycine ethyl ester, hydrochloride | HCID 2723640 | — |
| Reactant | 4-Chloro-5,6,7,8-tetrahydroquinazolin-2-amine | HCID 13707820 | — |
| Solvent | Water | HCID 962 | — |
| Product | Ethyl-2-[(2-amino-5,6,7,8-tetrahydroquinazoline-4-yl)amino]acetate | HCID 15896202 | 72.1% |
Reaction Steps
To a mixture of 4-chloro-5,6,7,8-tetrahydroquinazoline-2-ylamine (100 mg, 0.545 mmol), triethylamine (221 mg, 2.18 mmol) and butanol (3 ml) was added glycine ethyl ester hydrochloride (152 mg, 100 mmol) at room temperature. After the mixture was stirred for 4 hours at 90° C., the reaction mixture was poured into water and extracted with chloroform. The organic layer was washed with saturated brine, dried over sodium sulfate, filtered and the solvent in the filtrate was removed in vacuo. The residue was purified by silica gel chromatography (3% MeOH/CHCl3) to give the object compound (98.3 mg, 72.1%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06458798B1 |
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| Source dataset | uspto-grants-2002_10 |
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| ORD ID | ord-3ef4b2e6af9e4ff39c202664056386d9 |
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| Source note | uspto-grants-2002_10 |
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