HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 583712Generated: October 26, 2026
Triethylamine → 4-[(3-Aminoisoquinolin-1-yl)ethynyl]benzoyl-2(S)-phenylsulfonylamino-beta-alanine ethyl ester
https://huagongshe.com/reaction/583712
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1-Bromoisoquinolin-3-amine | HCID 289845 | — |
| Reactant | 4-Ethynylbenzoyl-2(S)-phenylsulfonylamino-beta-alanine ethyl ester | HCID 86752458 | — |
| Catalyst | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 4-[(3-Aminoisoquinolin-1-yl)ethynyl]benzoyl-2(S)-phenylsulfonylamino-beta-alanine ethyl ester | HCID 86754345 | — |
Reaction Steps
Ethyl ester 35-3 (0.50 g, 1.25 mmol), 3-amino-1-bromoisoquinoline (0.279 g, 1.25 mmol), triethylamine (0.697 mL, 5.00 mmol), CuI (10 mg, 0.053 mmol), and (Ph3P)2PdCl2 (20 mg, 0.028 mmol) were combined in 5 mL acetonitrile in a sealed pressure tube under Ar and heated to 100° C. overnight. The dark solution was cooled and diluted with EtOAc, then washed with water (2×) and brine, dried (MgSO4), filtered, and concentrated. Flash chromatography (silica, 75% EtOAc/Hexane) gave 35-4 as a greenish foam.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05929120 |
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| Source dataset | uspto-grants-1999_07 |
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| ORD ID | ord-6898179a3d1c4f5ea3eb85a2fc633743 |
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| Source note | uspto-grants-1999_07 |
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