1,2-Dichloroethane → 4-{(S)-4-tert-Butoxycarbonyl-2-[(4-hydroxy-naphthalene-2-carbonyl)-amino]-butyryl}-piperazine-1-carboxylic acid ethyl ester

HRID 1185457노트

반응식

HRID 1185457 반응식
[OH:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[CH:5]=[C:4]([C:12]([OH:14])=O)[CH:3]=1.[CH2:15]([O:17][C:18]([N:20]1[CH2:25][CH2:24][N:23]([C:26](=[O:38])[C@@H:27]([NH2:37])[CH2:28][CH2:29][C:30]([O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[O:31])[CH2:22][CH2:21]1)=[O:19])[CH3:16].C1C=CC2N(O)N=NC=2C=1.C(Cl)CCl>CN(C=O)C.O>[CH2:15]([O:17][C:18]([N:20]1[CH2:21][CH2:22][N:23]([C:26](=[O:38])[C@@H:27]([NH:37][C:12]([C:4]2[CH:3]=[C:2]([OH:1])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[CH:5]=2)=[O:14])[CH2:28][CH2:29][C:30]([O:32][C:33]([CH3:35])([CH3:34])[CH3:36])=[O:31])[CH2:24][CH2:25]1)=[O:19])[CH3:16]

참가 물질

7

반응물 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 130809444-Hydroxynaphthalene-2-carboxylic acidHCID 66651766ethyl 4-[(2S)-2-amino-5-tert-butoxy-5-oxopentanoyl]piperazine-1-carboxylate

생성물 1

HCID 685998254-{(S)-4-tert-Butoxycarbonyl-2-[(4-hydroxy-naphthalene-2-carbonyl)-amino]-butyryl}-piperazine-1-carboxylic acid ethyl ester

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

To a solution of 630 mg of 4-Hydroxy-naphthalene-2-carboxylic acid and 1.1 g of 4-((S)-2-Amino-4-tert-butoxycarbonyl-butyryl)-piperazine-1-carboxylic acid ethyl ester in 3 ml of DMF, 512 mg of HOBT and 641 mg of EDC was added and the reaction mixture was stirred for 4 h at RT. Then, the reaction mixture was diluted with water and extracted with DCM. The organic phase was dried over MgSO4 and the solvents were removed under reduced pressure. The crude product was purified by chromatography on silica gel eluting with n-heptane/ethyl acetate (1/2). The fractions containing the product were combined and the solvent evaporated under reduced pressure. Yield: 246 mg.

후처리

  1. extractionextracted with DCM
  2. dry with materialThe organic phase was dried over MgSO4
  3. customthe solvents were removed under reduced pressure
  4. customThe crude product was purified by chromatography on silica gel eluting with n-heptane/ethyl acetate (1/2)
  5. additionThe fractions containing the product
  6. customthe solvent evaporated under reduced pressure

출처 및 근거

ORD 기록
ord-7c8cf30f5476412cb32cef14dcdba5f3
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08669266B2

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