Water → (S)-2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-6-(bis((1-methyl-1H-imidazol-2-yl)methyl)amino)hexanoic acid

HRID 77606

반응식

HRID 77606 반응식
[NH:1]([C:11]([O:13][CH2:14][CH:15]1[C:27]2[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=2)[C:21]2[C:16]1=[CH:17][CH:18]=[CH:19][CH:20]=2)=[O:12])[C@H:2]([C:8]([OH:10])=[O:9])[CH2:3][CH2:4][CH2:5][CH2:6][NH2:7].Cl.[CH3:29][N:30]1[CH:34]=[CH:33][N:32]=[C:31]1[CH:35]=O.[BH-](O[C:47]([CH3:49])=O)(OC(C)=O)OC(C)=O.[Na+].O>ClCCCl>[CH:17]1[C:16]2[CH:15]([CH2:14][O:13][C:11]([NH:1][C@@H:2]([CH2:3][CH2:4][CH2:5][CH2:6][N:7]([CH2:35][C:31]3[N:30]([CH3:29])[CH:47]=[CH:49][N:32]=3)[CH2:35][C:31]3[N:30]([CH3:29])[CH:34]=[CH:33][N:32]=3)[C:8]([OH:10])=[O:9])=[O:12])[C:27]3[C:22](=[CH:23][CH:24]=[CH:25][CH:26]=3)[C:21]=2[CH:20]=[CH:19][CH:18]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 1395751-Methyl-2-imidazolecarboxaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 11858928(2S)-6-amino-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)hexanoic acid hydrochloride

생성물 1

HCID 12985318(S)-2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-6-(bis((1-methyl-1H-imidazol-2-yl)methyl)amino)hexanoic acid수율 92%

시약·촉매·용매 1

HCID 111,2-Dichloroethane용매

반응 조건

온도
0 °C

실험 절차

A solution of Fmoc-Lys-OH.HCl (1.822 g, 4.5 mmol) and 1-methyl-1H-imidazole-2-carbaldehyde (1.10 g, 10 mmol) in DCE (50 mL) was stirred at 75° C. for 30 min under nitrogen. The reaction mixture was cooled to 0° C., and treated with NaBH(OAc)3 (3.165 g, 15 mmol). The reaction mixture was stirred at room temperature for overnight and decomposed with water. The reaction mixture was extracted with DCM, the organic layer dried and concentrated under reduced pressure. The residue was purified by flash chromatography over silica gel to afford (S)-2-(((9H-fluoren-9-yl)methoxy)carbonylamino)-6-(bis((1-methyl-1H-imidazol-2-yl)methyl)amino)hexanoic acid (2.30 g, 92%). MS (ESI), 557 (M+H)+.

후처리

  1. extractionThe reaction mixture was extracted with DCM
  2. customthe organic layer dried
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified by flash chromatography over silica gel

출처 및 근거

ORD 기록
ord-3762fa1087c0450da700c054388e2c27
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08840865B2

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