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Acetic Acid → 1-{3-[4-(2-Amino-6-chloro-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester

HRID 500965
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HRID 500965 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11]2[N:14]([CH2:27][CH2:28][CH2:29][N:30]3[CH2:35][CH2:34][N:33]([C:36]4[C:41]([N+:42]([O-])=O)=[CH:40][CH:39]=[CH:38][C:37]=4[Cl:45])[CH2:32][CH2:31]3)[N:15]=[C:16]([C:17]3[CH:22]=[CH:21][C:20]([C:23]([F:26])([F:25])[F:24])=[CH:19][CH:18]=3)[C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(O)(=O)C.C([O-])(O)=O.[Na+]>CO.C(Cl)Cl.[Zn]>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11]2[N:14]([CH2:27][CH2:28][CH2:29][N:30]3[CH2:35][CH2:34][N:33]([C:36]4[C:37]([Cl:45])=[CH:38][CH:39]=[CH:40][C:41]=4[NH2:42])[CH2:32][CH2:31]3)[N:15]=[C:16]([C:17]3[CH:18]=[CH:19][C:20]([C:23]([F:25])([F:26])[F:24])=[CH:21][CH:22]=3)[C:10]=2[CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]
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참가 물질

7

반응물 3

HCID 176Acetic AcidHCID 516892Sodium BicarbonateHCID 684630981-{3-[4-(2-Chloro-6-nitro-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester

생성물 1

HCID 684635871-{3-[4-(2-Amino-6-chloro-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester

시약·촉매·용매

3
HCID 23994Zinc촉매HCID 887Methanol용매HCID 6344Dichloromethane용매

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온도
25 °C

실험 절차

A solution of 360 mg (0.56 mmol) of 1-{3-[4-(2-chloro-6-nitro-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester in 4 mL of MeOH was treated with 182 mg (5 eq) of zinc dust and glacial acetic acid (1.57 mL, 50 eq) at 25° C. The reaction mixture was stirred at 25° C. for 1 h. The reaction mixture was then filtered through a pad of celite and concentrated to obtain a thick oil. The residue was taken up in CH2Cl2 (50 mL) and sat. NaHCO3 (20 mL). The organic layer was separated, washed with H2O (2×10 mL), dried over Na2SO4, and concentrated to afford 1-{3-[4-(2-amino-6-chloro-phenyl)-piperazin-1-yl]-propyl}-3-(4-trifluoromethyl-phenyl)-1,4,6,7-tetrahydro-pyrazolo[4,3-c]pyridine-5-carboxylic acid tert-butyl ester. TLC (silica, 10% MeOH/CH2Cl2): Rf=0.3. MS (electrospray): exact mass calculated for C31H38ClF3N6O2, 618.27; m/z found, 619.3 [M+H]+.

후처리

  1. filtrationThe reaction mixture was then filtered through a pad of celite
  2. concentrationconcentrated
  3. customto obtain a thick oil
  4. customThe organic layer was separated
  5. washwashed with H2O (2×10 mL)
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated

출처 및 근거

ORD 기록
ord-0a489f0110774e51832d5690294de418
출처 데이터셋
uspto-grants-2010_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07772236B2

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