Acetic Acid → 5-Methanesulfonyl-1-[3-[4-(2-nitro-phenyl)-piperazin-1-yl]-propyl]-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine

HRID 271765

반응식

HRID 271765 반응식
[CH3:1][S:2]([N:5]1[CH2:10][CH2:9][C:8]2[N:11]([CH2:24][CH2:25][CH:26]=O)[N:12]=[C:13]([C:14]3[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=3)[C:7]=2[CH2:6]1)(=[O:4])=[O:3].[N+:28]([C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=1[N:37]1[CH2:42][CH2:41][NH:40][CH2:39][CH2:38]1)([O-:30])=[O:29].CC(O)=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+].C([O-])(O)=O.[Na+]>C(Cl)Cl>[CH3:1][S:2]([N:5]1[CH2:10][CH2:9][C:8]2[N:11]([CH2:24][CH2:25][CH2:26][N:40]3[CH2:41][CH2:42][N:37]([C:32]4[CH:33]=[CH:34][CH:35]=[CH:36][C:31]=4[N+:28]([O-:30])=[O:29])[CH2:38][CH2:39]3)[N:12]=[C:13]([C:14]3[CH:19]=[CH:18][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:16][CH:15]=3)[C:7]=2[CH2:6]1)(=[O:4])=[O:3]

참가 물질

7

반응물 5

HCID 176Acetic AcidHCID 1009491-(2-Nitrophenyl)piperazineHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 222938973-[5-Methanesulfonyl-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-1-yl]-propionaldehyde

생성물 1

HCID 101212995-Methanesulfonyl-1-[3-[4-(2-nitro-phenyl)-piperazin-1-yl]-propyl]-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine수율 71%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

To a stirred solution of 3-[5-methanesulfonyl-3-(4-trifluoromethyl-phenyl)-4,5,6,7-tetrahydro-pyrazolo[4,3-c]pyridin-1-yl]-propionaldehyde (0.060 g, 0.15 mmol) and 1-(2-nitro-phenyl)-piperazine (0.032 g, 0.157 mmol) in CH2Cl2 (0.5 mL), glacial AcOH (8.5 μL, 0.15 mmol) was added and stirred for 15 min at room temperature. NaBH(OAc)3 (0.041 g, 0.19 mmol) was added and stirred under nitrogen overnight. Saturated NaHCO3 (0.5 mL) was then added and stirred for 15 min. The layers separated and the aqueous layer was extracted with CH2Cl2 (0.5 mL). MPLC purification (silica, 2-15% MeOH/CH2Cl2) afforded the desired product as a white solid (0.063 g, 71%). TLC (silica, 12% MeOH/CH2Cl2): Rf=0.67. MS (electrospray): exact mass calculated for C27H31F3N6O4S, 592.21; m/z found, 593.2 [M+H]+. 1H NMR (400 MHz, CDCl3): 7.80 (dd, J=1.6, 8.2 Hz, 1H), 7.77 (d, J=8.3 Hz, 2H), 7.70 (d, J=8.3 Hz, 2H), 7.52 (ddd, J=1.6, 7.3, 8.3 Hz, 1H), 7.19 (dd, J=1.2, 8.3 Hz, 1H), 7.09 (m, 1H), 4.59 (s, 2H), 4.17 (t, J=6.9 Hz, 2H), 3.71 (t, J=5.8 Hz, 2H), 3.13 (br t, J =4.8 Hz, 4H), 2.96 (t, J=5.6 Hz, 2H), 2.95 (s, 3H), 2.66 (br t, J=4.4 Hz, 4H), 2.51 (t, J=7.0 Hz, 2H), 2.17 (q, J=6.9 Hz, 2H).

후처리

  1. stirringstirred under nitrogen overnight
  2. stirringstirred for 15 min
  3. customThe layers separated
  4. extractionthe aqueous layer was extracted with CH2Cl2 (0.5 mL)
  5. customMPLC purification (silica, 2-15% MeOH/CH2Cl2)

출처 및 근거

ORD 기록
ord-0c37199c6ea947809bdd6954dd07ccc4
출처 데이터셋
uspto-grants-2008_11
특허 번호
US07452890B2

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