4-Toluenesulfonyl chloride → HCID 57969035, 화합물

HRID 1471609노트

반응식

HRID 1471609 반응식
[NH2:1][CH2:2][C:3]1[CH:19]=[CH:18][C:6]([O:7][C:8]2[CH:17]=[CH:16][C:11]3[B:12]([OH:15])[O:13][CH2:14][C:10]=3[CH:9]=2)=[CH:5][CH:4]=1.[CH3:20][C:21]1[CH:26]=[CH:25][C:24]([S:27](Cl)(=[O:29])=[O:28])=[CH:23][CH:22]=1.CCN(CC)CC>C(Cl)Cl>[OH:15][B:12]1[C:11]2[CH:16]=[CH:17][C:8]([O:7][C:6]3[CH:18]=[CH:19][C:3]([CH2:2][NH:1][S:27]([C:24]4[CH:25]=[CH:26][C:21]([CH3:20])=[CH:22][CH:23]=4)(=[O:29])=[O:28])=[CH:4][CH:5]=3)=[CH:9][C:10]=2[CH2:14][O:13]1

참가 물질

5

반응물 3

HCID 73974-Toluenesulfonyl chlorideHCID 8471TriethylamineHCID 57968923Crisaborole intermediate

생성물 1

HCID 57969035HCID 57969035, 화합물

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a 20 mL scintillation vial containing 5-(4-aminomethyl-phenoxy)-3H-benzo[c][1,2]oxaborol-1-ol (144 mg, 0.56 mmol, 1.1 eq.), 4-methyl-benzenesulfonyl chloride (118.4 mg, 0.62 mmol, 1.1 eq.) in DCM (10.0 mL) was added Et3N (160 μL, 1.12 mmol, 2.0 eq.) drop wise. The mixture was stirred at room temperature overnight. The mixture was carefully treated with aqu. NH4Cl (10 mL) and the layers were separated. The aqueous was extracted with DCM (2×5 mL), combined organic phase was washed with H2O (10 mL), brine (10 mL), dried over MgSO4, filtered and the filtrate was concentrated under reduced pressure. The residue was applied to silica chromatography eluting with EtOAc/Heptanes (0:100 to 80:20) to give N-[4-(1-hydroxy-1,3-dihydro-benzo[c][1,2]oxaborol-5-yloxy)-benzyl]-4-methyl-benzenesulfonamide as a white solid. LCMS (m/z) 432 (M+23); 1H NMR (400 MHz, DMSO-d6) δ ppm 1H NMR (DMSO-d6) δ: 9.11 (s, 1H), 8.08 (t, J=6.3 Hz, 1H), 7.65-7.74 (m, 3H), 7.38 (d, J=8.0 Hz, 2H), 7.23-7.31 (m, J=8.6 Hz, 2H), 6.95-7.00 (m, 2H), 6.89-6.95 (m, 2H), 4.92 (s, 2H), 3.95 (d, J=6.3 Hz, 2H), 2.38 (s, 3H).

후처리

  1. additionThe mixture was carefully treated with aqu
  2. customNH4Cl (10 mL) and the layers were separated
  3. extractionThe aqueous was extracted with DCM (2×5 mL)
  4. washwas washed with H2O (10 mL), brine (10 mL)
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationthe filtrate was concentrated under reduced pressure
  8. washeluting with EtOAc/Heptanes (0:100 to 80:20)

출처 및 근거

ORD 기록
ord-031e6c1304a846199a738e1161a158bf
출처 데이터셋
uspto-grants-2015_04
특허 번호
US09012431B2

반응 노트

불러오는 중…