Triethylamine → 4-Cyano-N'-((2R,3R)-2-(4-cyanonaphthalen-1-ylamino)-3-hydroxybutanoyl)benzohydrazide

HRID 1254733

반응식

HRID 1254733 반응식
[C:1]([C:3]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6]([NH:13][C@H:14]([C@H:18]([OH:20])[CH3:19])[C:15]([OH:17])=O)=[CH:5][CH:4]=1)#[N:2].[C:21]([C:23]1[CH:32]=[CH:31][C:26]([C:27]([NH:29][NH2:30])=[O:28])=[CH:25][CH:24]=1)#[N:22].O.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.C(N(CC)CC)C>C1COCC1>[C:21]([C:23]1[CH:24]=[CH:25][C:26]([C:27]([NH:29][NH:30][C:15](=[O:17])[C@H:14]([NH:13][C:6]2[C:7]3[C:12](=[CH:11][CH:10]=[CH:9][CH:8]=3)[C:3]([C:1]#[N:2])=[CH:4][CH:5]=2)[C@H:18]([OH:20])[CH3:19])=[O:28])=[CH:31][CH:32]=1)#[N:22]

참가 물질

7

반응물 5

HCID 8471TriethylamineHCID 4567324-CyanobenzohydrazideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 67006249(2R,3R)-2-(4-Cyanonaphthalen-1-ylamino)-3-hydroxybutanoic acid

생성물 1

HCID 670059464-Cyano-N'-((2R,3R)-2-(4-cyanonaphthalen-1-ylamino)-3-hydroxybutanoyl)benzohydrazide수율 92.4%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a pre-cooled (−45° C.) solution of (2R,3R)-2-(4-cyanonaphthalen-1-ylamino)-3-hydroxybutanoic acid (1.50 g, 5.55 mmol) and 4-cyanobenzohydrazide (894 mg, 5.55 mmol) in anhydrous THF (80 mL) was added 1-Hydroxybenzotriazole monohydrate (850 mg, 5.55 mmol) and N-(3-Dimethylaminopropyl)-N′-ethylcarbodimide-HCl (2.13 g, 11.1 mmol) at −45° C. followed by triethylamine (1.55 mL, 11.1 mmol). The reaction mixture warmed to room temperature and stirred for 24 h, then quenched with 5% aq. citric acid (300 mL). The solution was extracted with EtOAc (300 mL). The organic extract was washed with 5% aq. citric acid (2×150 mL), sat. aq. NaHCO3 (3×150 mL), H2O (2×150 mL), dried (Na2SO4), filtered and concentrated under reduced pressure to provide the title compound as a light brown solid (2.12 g, 92%): 1H NMR (400 MHz, DMSO-d6, δ in ppm) 10.84 (s, 1H), 10.44 (s, 1H), 8.48 (d, J=8.8 Hz, 2H), 8.04-7.93 (m, 4H), 7.91 (d, J=8.2 Hz, 1H), 7.74 (t, J=6.8 Hz, 1H), 7.62 (t, J=7.2 Hz, 1H), 6.92 (d, J=8.2 Hz, 1H), 6.75 (d, J=8.2 Hz, 1H), 5.25 (d, J=4.5 Hz, 1H), 4.32-3.97 (m, 3H), 1.32 (d, J=6.1 Hz, 3H).

후처리

  1. customquenched with 5% aq. citric acid (300 mL)
  2. extractionThe solution was extracted with EtOAc (300 mL)
  3. extractionThe organic extract
  4. washwas washed with 5% aq. citric acid (2×150 mL), sat. aq. NaHCO3 (3×150 mL), H2O (2×150 mL)
  5. dry with materialdried (Na2SO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-e4dc1d3b21964e858ba4a8603f8eb1cf
출처 데이터셋
uspto-grants-2013_06
특허 번호
US08455525B2

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