Hydrochloric Acid → N-(4-methoxybenzoyl)-phenylalanyltyrosine

HRID 2398853노트

반응식

HRID 2398853 반응식
[CH3:1][O:2][C:3]1[CH:35]=[CH:34][C:6]([C:7]([NH:9][C@H:10]([C:18]([NH:20][C@H:21]([C:30]([O:32]C)=[O:31])[CH2:22][C:23]2[CH:28]=[CH:27][C:26]([OH:29])=[CH:25][CH:24]=2)=[O:19])[CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[O:8])=[CH:5][CH:4]=1.[OH-].[Na+].Cl>CO>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([C:7]([NH:9][C@H:10]([C:18]([NH:20][C@H:21]([C:30]([OH:32])=[O:31])[CH2:22][C:23]2[CH:24]=[CH:25][C:26]([OH:29])=[CH:27][CH:28]=2)=[O:19])[CH2:11][C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)=[O:8])=[CH:34][CH:35]=1

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 53971131methyl N-(4-methoxybenzoyl)phenylalanyltyrosinate

생성물 1

HCID 54084741N-(4-methoxybenzoyl)-phenylalanyltyrosine수율 82.1%

시약·촉매·용매 1

HCID 887Methanol용매

반응 조건

온도
50 °C

실험 절차

In 150 ml of methanol, was dissolved 30 g of methyl N-(4-methoxybenzoyl)-phenylalanyltyrosinate. After addition of 145 ml of 1 N sodium hydroxide, the mixture was stirred at 50° C. for 2 hours. The reaction mixture was neutralized with hydrochloric acid, concentrated and extracted with ethyl acetate. The extract was washed with water, dried and concentrated to dryness. The residue was crystallized from ethyl acetate to give 23.9 g of N-(4-methoxybenzoyl)-phenylalanyltyrosine with a mp. 198°-200° C. in a yield of 82%. Analysis, calculated for C26H26O6N2 : C, 67.52; H, 5.67; N, a 6.06; found C, 67.17; H, 5.69; N, 5.95.

후처리

  1. concentrationconcentrated
  2. extractionextracted with ethyl acetate
  3. washThe extract was washed with water
  4. customdried
  5. concentrationconcentrated to dryness
  6. customThe residue was crystallized from ethyl acetate

출처 및 근거

ORD 기록
ord-4ac7444937bf41cf997bb1b55ebdcfea
출처 데이터셋
uspto-grants-1977_05
특허 번호
US04025644

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