Water → Ethyl L-cysteinate

HRID 371068

반응식

HRID 371068 반응식
O.Cl.[NH2:3][C@H:4]([C:7]([O:9][CH2:10][CH3:11])=[O:8])[CH2:5][SH:6]>C(O)C.C(=O)([O-])[O-].[Ag+2]>[NH2:3][C@H:4]([C:7]([O:9][CH2:10][CH3:11])=[O:8])[CH2:5][SH:6]

참가 물질

5

반응물 2

HCID 962WaterHCID 2723617Ethyl cysteinate hydrochloride

생성물 1

HCID 13359Ethyl L-cysteinate수율 293.9%

시약·촉매·용매 2

HCID 178418647HCID 178418647, 화합물촉매HCID 702Ethanol용매

실험 절차

1.3 g of sulfodehydroabietic acid is dissolved in 15 ml of ethanol and 0.472 mg of silver carbonate and 20 ml of water are added thereto. 0.635 g of ethyl L-cysteinate hydrochloride are added to the mixture and said mixture is stirred at room temperature. The precipitates are filtered off and the filtrate is concentrated to dryness under reduced pressure. The residue is recrystallized from a mixture of methanol and ethyl acetate, whereby 1.5 g of sulfodehydroabietic acid ethyl L-cysteinate salt hemihydrate is obtained.

후처리

  1. filtrationThe precipitates are filtered off
  2. concentrationthe filtrate is concentrated to dryness under reduced pressure
  3. customThe residue is recrystallized from a mixture of methanol and ethyl acetate

출처 및 근거

ORD 기록
ord-44d69d7bac994cddb8d765ad2efb1853
출처 데이터셋
uspto-grants-1985_07
특허 번호
US04529602

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