1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → Ethyl 2-benzyl-3-((S)-1-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethylamino)-3-oxopropanoate

HRID 335021노트

반응식

HRID 335021 반응식
Br.[CH2:2]([C:4]1[N:5]=[C:6]([C@@H:9]([NH2:20])[CH2:10][C:11]2[CH:16]=[CH:15][C:14]([N+:17]([O-:19])=[O:18])=[CH:13][CH:12]=2)[S:7][CH:8]=1)[CH3:3].[CH2:21]([CH:28]([C:32]([O:34][CH2:35][CH3:36])=[O:33])[C:29](O)=[O:30])[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.ON1C2C=CC=CC=2N=N1.CN(C)CCCN=C=NCC.C(N(C(C)C)CC)(C)C>CN(C=O)C.O>[CH2:35]([O:34][C:32](=[O:33])[CH:28]([CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)[C:29]([NH:20][C@H:9]([C:6]1[S:7][CH:8]=[C:4]([CH2:2][CH3:3])[N:5]=1)[CH2:10][C:11]1[CH:16]=[CH:15][C:14]([N+:17]([O-:19])=[O:18])=[CH:13][CH:12]=1)=[O:30])[CH3:36]

참가 물질

8

반응물 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 28848672-Benzyl-malonic acid monoethyl esterHCID 666949351-(S)-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethyl amine hydrobromide

생성물 1

HCID 59464662Ethyl 2-benzyl-3-((S)-1-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethylamino)-3-oxopropanoate수율 31%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

반응 조건

온도
0 °C

실험 절차

To a solution of 1-(S)-(4-ethylthiazol-2-yl)-2-(4-nitrophenyl)ethyl amine hydrobromide, 3, (0.406 g, 1.13 mmol), 2-benzyl-3-ethoxy-3-oxopropanoic acid (0.277 g) and 1-hydroxybenzotriazole (HOBt) (0.191 g, 1.41 mmol) in DMF (10 mL) at 0°, is added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide (EDCI) (0.240 g, 1.25 mmol) followed by diisopropylethylamine (DIPEA) (0.306 g). The mixture is stirred at 0° C. for 30 minutes then at room temperature overnight. The reaction mixture is diluted with water and extracted with EtOAc. The combined organic phase is washed with 1N aqueous HCl, 5% aqueous NaHCO3, water and brine, and dried over Na2SO4. The solvent is removed in vacuo to afford 0.169 g (31% yield) of the desired product which is used without further purification.

후처리

  1. customat room temperature
  2. customovernight
  3. extractionextracted with EtOAc
  4. washThe combined organic phase is washed with 1N aqueous HCl, 5% aqueous NaHCO3, water and brine
  5. dry with materialdried over Na2SO4
  6. customThe solvent is removed in vacuo

출처 및 근거

ORD 기록
ord-d29f030e4a5f4d589d56f29c75f58e03
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08883832B2

반응 노트

불러오는 중…