Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Ethanesulfonyl chloride | HCID 11667 | — |
| Reactant | Leucine methyl ester hydrochloride | HCID 2723695 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 93038209 | HCID 93038209 | — |
Reaction Steps
A stirred solution of 3.0 g of H-Leu-OMe.HCl in 30 mL of dichloromethane was adjusted to pH 8 using triethylamine and cooled at 0° C. Then 3.2 mL of ethanesulfonyl chloride and 2.3 mL of triethylamine were added. After stirring for 16 h at room temperature the reaction mixture was washed successively with 0.5 N hydrochloric acid, water and aqueous 5% sodium hydrogencarbonate and concentrated. The crude product was purified by chromatography on silica gel (eluent: dichloromethane/methanol=9/1 v/v) to yield 3.3 g of EtSO2-Leu-OMe.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06534495B1 |
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| Source dataset | uspto-grants-2003_03 |
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| ORD ID | ord-c10b6d89c7534e47b53145e78c18737a |
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| Source note | uspto-grants-2003_03 |
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