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Pyridine → N,N-dimethyl-5-[3-[(3S)-1-methyl-2-oxo-pyrrolidin-3-yl]oxy-5-[(3-methyl-1,2,4-thiadiazol-5-yl)carbamoyl]phenoxy]pyrazine-2-carboxamide

HRID 600527
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HRID 600527 반응식
ClC(N(C)C)=C(C)C.[CH3:9][N:10]([CH3:37])[C:11]([C:13]1[N:14]=[CH:15][C:16]([O:19][C:20]2[CH:21]=[C:22]([CH:26]=[C:27]([O:29][C@H:30]3[CH2:34][CH2:33][N:32]([CH3:35])[C:31]3=[O:36])[CH:28]=2)[C:23](O)=[O:24])=[N:17][CH:18]=1)=[O:12].[CH3:38][C:39]1[N:43]=[C:42]([NH2:44])[S:41][N:40]=1.N1C=CC=CC=1>C(Cl)Cl>[CH3:37][N:10]([CH3:9])[C:11]([C:13]1[CH:18]=[N:17][C:16]([O:19][C:20]2[CH:21]=[C:22]([C:23](=[O:24])[NH:44][C:42]3[S:41][N:40]=[C:39]([CH3:38])[N:43]=3)[CH:26]=[C:27]([O:29][C@H:30]3[CH2:34][CH2:33][N:32]([CH3:35])[C:31]3=[O:36])[CH:28]=2)=[CH:15][N:14]=1)=[O:12]
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참가 물질

6

반응물 4

HCID 1049PyridineHCID 3506395-Amino-3-methyl-1,2,4-thiadiazoleHCID 6407921-Chloro-N,N-2-trimethylpropenylamineHCID 59761148HCID 59761148, 화합물2회

생성물 1

HCID 24951580N,N-dimethyl-5-[3-[(3S)-1-methyl-2-oxo-pyrrolidin-3-yl]oxy-5-[(3-methyl-1,2,4-thiadiazol-5-yl)carbamoyl]phenoxy]pyrazine-2-carboxamide수율 72%

시약·촉매·용매

1
HCID 6344Dichloromethane용매

실험 절차

1-Chloro-N,N,2-trimethyl-prop-1-en-1-amine (0.142 mL, 1.07 mmol) was added to a solution of 3-[5-(dimethylcarbamoyl)pyrazin-2-yl]oxy-5-[(3S)-1-methyl-2-oxo-pyrrolidin-3-yl]oxy-benzoic acid (Intermediate 45) (358 mg, 0.9 mmol) in DCM (7 mL) and stirred at ambient temperature for 30 minutes. 3-Methyl-1,2,4-thiadiazol-5-amine (CAS no. 17467-35-5) (206 mg, 1.8 mmol) and pyridine (0.147 mL, 1.8 mmol) were added and the reaction stirred for 20 hours. The solvent was removed under reduced pressure. The residue was dissolved in ethyl acetate (15 mL) and DCM (15 mL), washed with water (10 mL) and filtered to give a solid which was washed with water and dried. The filtrate was washed with citric acid (1N, 10 mL), water (10 mL), saturated sodium bicarbonate solution (10 mL), brine (10 mL), dried (MgSO4) and evaporated. The residue was combined with the solid isolated from the filtration and purified by flash chromatography on silica eluting with a gradient of 0-3% methanol in DCM to afford the product (322 mg, 72%). 1H NMR δ (300 MHz, CDCl3) 1.93-2.06 (m, 1H), 2.45 (s, 3H), 2.55-2.66 (m, 1H), 2.80 (s, 3H), 3.03 (s, 6H), 3.19-3.53 (m, 2H), 5.14 (t, 1H), 7.30 (s, 1H), 7.63 (s, 1H), 7.72 (s, 1H), 8.43 (s, 1H), 8.58 (s, 1H), 11.9-12.8 (br s, 1H); m/z 498 (M+H+).

후처리

  1. stirringthe reaction stirred for 20 hours
  2. customThe solvent was removed under reduced pressure
  3. dissolutionThe residue was dissolved in ethyl acetate (15 mL)
  4. washDCM (15 mL), washed with water (10 mL)
  5. filtrationfiltered
  6. customto give a solid which
  7. washwas washed with water
  8. customdried
  9. washThe filtrate was washed with citric acid (1N, 10 mL), water (10 mL), saturated sodium bicarbonate solution (10 mL), brine (10 mL)
  10. dry with materialdried (MgSO4)
  11. customevaporated
  12. customisolated from the filtration
  13. custompurified by flash chromatography on silica eluting with a gradient of 0-3% methanol in DCM

출처 및 근거

ORD 기록
ord-feb3b12a7da847cc9b05a1f68d26c251
출처 데이터셋
uspto-grants-2011_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07902200B2

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