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Hydrazine hydrate (1:1) → 6,7-dichloro-4-(4-fluoro-3-(4-methoxypiperidine-1-carbonyl)benzyl)phthalazin-1(2H)-one

HRID 1091749
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HRID 1091749 반응식
[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[Cl:11])[C:7](=O)[O:6]/[C:5]/2=[CH:13]\[C:14]1[CH:19]=[CH:18][C:17]([F:20])=[C:16]([C:21]([N:23]2[CH2:28][CH2:27][CH:26]([O:29][CH3:30])[CH2:25][CH2:24]2)=[O:22])[CH:15]=1.O.[NH2:32][NH2:33]>O.CN(C)C=O>[Cl:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[Cl:11])[C:7](=[O:6])[NH:33][N:32]=[C:5]2[CH2:13][C:14]1[CH:19]=[CH:18][C:17]([F:20])=[C:16]([C:21]([N:23]2[CH2:28][CH2:27][CH:26]([O:29][CH3:30])[CH2:25][CH2:24]2)=[O:22])[CH:15]=1
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참가 물질

5

반응물 2

HCID 24654Hydrazine hydrate (1:1)HCID 57791853(Z)-5,6-dichloro-3-(4-fluoro-3-(4-methoxypiperidine-1-carbonyl)benzylidene)isobenzofuran-1(3H)-one

생성물 1

HCID 577918676,7-dichloro-4-(4-fluoro-3-(4-methoxypiperidine-1-carbonyl)benzyl)phthalazin-1(2H)-one수율 35.4%

시약·촉매·용매 2

HCID 962Water용매2회HCID 6228
Dimethylformamide
용매

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온도
105 °C

실험 절차

(Z)-5,6-dichloro-3-(4-fluoro-3-(4-methoxypiperidine-1-carbonyl)benzylidene)isobenzofuran-1(3H)-one (64) (127 mg, 0.28 mmol) was taken up in water (2 mL) and N,N-dimethylformamide (0.500 mL). The resulting mixture was treated with hydrazine hydrate (0.080 mL, 1.65 mmol) and the reaction was heated to 105° C. with stirring for 90 minutes. The reaction mixture was cooled, diluted with water (˜10 mL) and solid collected by suction filtration to afford the crude product, which was purified by flash silica chromatography, eluting with neat ethyl acetate. Pure fractions were evaporated to dryness and the residue triturated under diethyl ether and dried under vacuum to afford the desired material as a white solid (46.0 mg, 35% yield); 1H NMR (400.132 MHz, DMSO) δ 1.30-1.40 (1H, m), 1.44-1.53 (1H, m), 1.72-1.79 (1H, m), 1.87-1.94 (1H, m), 3.04-3.11 (1H, m), 3.29 (3H, s), 3.30-3.40 (2H, m), 3.44-3.49 (1H, m), 3.92-4.00 (1H, m), 4.37 (2H, s), 7.26 (1H, t), 7.38-7.45 (2H, m), 8.29 (1H, s), 8.40 (1H, s), 12.83 (1H, s); m/z (LC-MS, ESI+), RT=2.13 (M+H 464 & 465.9).

후처리

  1. temperatureThe reaction mixture was cooled
  2. filtrationcollected by suction filtration
  3. customto afford the crude product, which
  4. customwas purified by flash silica chromatography
  5. washeluting with neat ethyl acetate
  6. customPure fractions were evaporated to dryness
  7. customthe residue triturated under diethyl ether
  8. customdried under vacuum

출처 및 근거

ORD 기록
ord-d759494d6627415ebcd86e342304eef7
출처 데이터셋
uspto-grants-2012_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08129380B2

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