Nitrogen → HCID 59819846, 화합물

HRID 383604

반응식

HRID 383604 반응식
N#N.[CH3:3][O:4][C:5](=[O:36])[CH2:6][C:7]1[CH:8]=[C:9]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=2[NH:19][C:20](=[O:35])[CH2:21][CH2:22][C:23]2[CH:28]=[C:27]([O:29]C)[C:26]([O:31]C)=[C:25]([O:33]C)[CH:24]=2)[CH:10]=[CH:11][CH:12]=1.B(Br)(Br)Br>C(Cl)Cl>[CH3:3][O:4][C:5](=[O:36])[CH2:6][C:7]1[CH:8]=[C:9]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=2[NH:19][C:20](=[O:35])[CH2:21][CH2:22][C:23]2[CH:24]=[C:25]([OH:33])[C:26]([OH:31])=[C:27]([OH:29])[CH:28]=2)[CH:10]=[CH:11][CH:12]=1

참가 물질

5

반응물 3

HCID 947NitrogenHCID 25134Boron tribromideHCID 16116560{2'-[3-(3,4,5-Trimethoxy-phenyl)-propionylamino]-biphenyl-3-yl}-acetic acid methyl ester

생성물 1

HCID 59819846HCID 59819846, 화합물수율 5%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

반응 조건

온도
-78 °C

실험 절차

(The following reaction is done in an anhydrous N2 atmosphere.) Dissolve {2′-[3-(3,4,5-Trimethoxy-phenyl)-propionylamino]-biphenyl-3-yl}-acetic acid methyl ester (72) (46 mg, 0.10 mmol) in anhydrous DCM (1.0 mL), cool the solution to −78° C. and add dropwise BBr3 (85 μL, 0.90 mmol). Stir the reaction mixture for 30 min at −78° C. and after slowly warming up for additional 2 h at rt. Add dropwise ice water, separate layers and extract aqu. layer with DCM (3 times). Wash combined organic layer with brine and dry with Na2SO4. Purify the crude product by preparative RP HPLC (gradient, water/CH3CN 95:5 to 5:95) to obtain {2′-[3-(3,4,5-Trihydroxy-phenyl)-propionylamino]-biphenyl-3-yl}-acetic acid methyl ester (73) (2 mg, 5%). 1H NMR (400 MHz, CD3CN): 2.43 (t, 2H, J=7.6 Hz); 2.69 (t, 2H, J=7.6 Hz); 3.66 (s, 3H); 3.70 (s, 2H); 6.25 (s, 2H); 7.18-7.34 (m, 5 H); 7.35-7.44 (m, 2H); 7.65 (br.s, 1H); 7.89 (br.d, 1H, J=8.3 Hz).

후처리

  1. custom(The following reaction
  2. temperatureafter slowly warming up for additional 2 h at rt
  3. customseparate layers
  4. extractionextract aqu
  5. washWash
  6. dry with materialdry with Na2SO4
  7. customPurify the crude product by preparative RP HPLC (gradient, water/CH3CN 95:5 to 5:95)

출처 및 근거

ORD 기록
ord-a9dcd5bfeff7454cb3cd57ea2b25269b
출처 데이터셋
uspto-grants-2013_02
특허 번호
US08367677B2

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