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Formaldehyde → (S)-7-Chloro-10-[3-(2-methoxy-ethyl)-4-methyl-piperazin-1-yl]-2-methyl-4H-3-thia-4,9-diaza-benzo[f]azulene

HRID 131479
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HRID 131479 반응식
[Cl:1][C:2]1[CH:26]=[CH:25][C:5]2[NH:6][C:7]3[S:8][C:9]([CH3:24])=[CH:10][C:11]=3[C:12]([N:14]3[CH2:19][CH2:18][NH:17][C@@H:16]([CH2:20][CH2:21][O:22][CH3:23])[CH2:15]3)=[N:13][C:4]=2[CH:3]=1.C=O.[C:29](O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)(O)[O-].[Na+]>ClCCCl>[Cl:1][C:2]1[CH:26]=[CH:25][C:5]2[NH:6][C:7]3[S:8][C:9]([CH3:24])=[CH:10][C:11]=3[C:12]([N:14]3[CH2:19][CH2:18][N:17]([CH3:29])[C@@H:16]([CH2:20][CH2:21][O:22][CH3:23])[CH2:15]3)=[N:13][C:4]=2[CH:3]=1
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반응물 4

HCID 712FormaldehydeHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 136090361(S)-7-Chloro-10-[3-(2-methoxy-ethyl)-piperazin-1-yl]-2-methyl-4H-3-thia-4,9-diaza-benzo[f]azulene

생성물 1

HCID 136090349(S)-7-Chloro-10-[3-(2-methoxy-ethyl)-4-methyl-piperazin-1-yl]-2-methyl-4H-3-thia-4,9-diaza-benzo[f]azulene

시약·촉매·용매 1

HCID 111,2-Dichloroethane용매

실험 절차

Combine (S)-7-chloro-10-[3-(2-methoxy-ethyl)-piperazin-1-yl]-2-methyl-4H-3-thia-4,9-diaza-benzo[f]azulene (33.3 g, 85.2 mmol) and 1,2-dichloroethane (DCE, 500 mL). Add formaldehyde (37% wt. in water, 6.91 g solution, 2.56 g, 85.2 mmol) in one portion and stir at ambient temperature for 5 minutes. Add sodium triacetoxyborohydride (3.41 g, 16.1 mmol) in portions over 5-10 minutes, keeping the pot temperature below 25° C. Stir at ambient temperature overnight. Add saturated aqueous sodium bicarbonate (333 mL). Stir for 15 minutes, and then separate layers. Extract the aqueous layer with methylene chloride (250 mL). Wash the combined organic layers with water (3×333 mL), dry over sodium sulfate, and then concentrate ins vacuo to a residue (>100% recovery). Purify the residue by flash column chromatography, eluting with (100% CH2Cl2 to 93/7 CH2Cl2/MeOH) 91.2% recovery of the title compound. 1H NMR (500 MHz, DMSO-d6) δ 1.49 (m, 1H), 1.82 (m, 1H), 2.13 (m, 2H), 2.20 (s, 3H), 2.27 (s, 3H), 2.74 (m, 2H), 2.98 (bt, 1H), 3.19 (s, 3H), 3.32 (m, 2H), 3.77 (bm, 2H).

후처리

  1. customthe pot temperature below 25° C
  2. stirringStir for 15 minutes
  3. extractionExtract the aqueous layer with methylene chloride (250 mL)
  4. washWash the combined organic layers with water (3×333 mL)
  5. dry with materialdry over sodium sulfate
  6. customPurify the residue by flash column chromatography
  7. washeluting with (100% CH2Cl2 to 93/7 CH2Cl2/MeOH) 91.2% recovery of the title compound

출처 및 근거

ORD 기록
ord-2d93fa670c69445d8df8e60c68c6b094
출처 데이터셋
uspto-grants-2008_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07384934B2

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