HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1445752Generated: October 30, 2026
1,2-Dichloroethane → HCID 58951437, compound
https://huagongshe.com/reaction/1445752
Participants
| Role | Name | HCID | Charge |
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| Reactant | 1,2-Dichloroethane | HCID 11 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | (2R)-(-)-2-Methylpyrrolidine hydrochloride | HCID 11147704 | — |
| Reactant | 5-Methyl-2-[4-(phenylmethoxy)phenyl]-4-oxazoleacetic acid | HCID 22261171 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 58951437 | HCID 58951437 | 47.1% |
Reaction Steps
To a mixture of [2-(4-Benzyloxy-phenyl)-5-methyl-oxazol-4-yl]-acetic acid [CAS 403611-89-2] (2.2 g, 6.8 mmol) in CH2Cl2 (40 mL) is added EDC (1.57 g, 8.2 mmol) and HOBT (1.11 g, 8.2 mmol). After a few minutes, (R)-2-methylpyrrolidine hydrochloride [CAS 41720-98-3] (1.0 g, 8.2 mmol) and DIPEA (2.5 mL, 13.6 mmol) are added. The mixture is stirred at room temperature overnight. The mixture is partitioned between EtOAc and water. The aqueous phase is extracted with EtOAc (2×), and the combined organic phase is washed with brine, dried (Na2SO4), and concentrated. The residue is purified by flash chromatography [120 g SiO2, elute gradient 30% EtOAc/hexane to 80% EtOAc/hexane) to yield 1.25 g of the title compound as a yellow oil. MS (m/e): 391.2 (M+1)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07666871B2 |
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| Source dataset | uspto-grants-2010_02 |
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| ORD ID | ord-fc39cc0e88674219939956a339fcc1b6 |
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| Source note | uspto-grants-2010_02 |
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