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4-Methylmorpholine → 8-anilino-N-hydroxy-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxamide

HRID 875117
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HRID 875117 반응식
[NH:1]([C:8]1[N:17]=[CH:16][C:15]2[CH2:14][CH2:13][C:12]3[C:18]([C:22]([OH:24])=O)=[N:19][N:20]([CH3:21])[C:11]=3[C:10]=2[N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH:25][N:26]1C2C=CC=CC=2N=N1.CN1CCOCC1.Cl.CN(C)CCCN=C=NCC.C1(C(NO)(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>CN(C)C=O>[NH:1]([C:8]1[N:17]=[CH:16][C:15]2[CH2:14][CH2:13][C:12]3[C:18]([C:22]([NH:26][OH:25])=[O:24])=[N:19][N:20]([CH3:21])[C:11]=3[C:10]=2[N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1
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참가 물질

7

반응물 5

HCID 79724-MethylmorpholineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 11311898TriphenylmethylhydroxylamineHCID 441296031-methyl-8-(phenylamino)-4,5-dihydro-1H-pyrazolo(4,3-h)quinazoline-3-carboxylic acid

생성물 1

HCID 135980700
8-anilino-N-hydroxy-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxamide
수율 66.1%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of 260 mg (0.81 mmol) of 8-anilino-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid in 50 mL of anhydrous dimethylformamide 111 mg of N-hydroxybenzotriazole (0.81 mmol), 0.16 mL of N-methylmorpholine, 205 mg (1.07 mmol) of N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride and 585 mg (2.13 mmol) of triphenylmethylhydroxylamine were added consecutively. After 48 hours at room temperature the solvent was removed under reduced pressure and the residue taken up with dichoromethane and washed with water. The organic layer was then dried over sodium sulfate and evaporated. The crude was treated with 10 mL of a mixture dichloromethanetrifluoroacetic acid and after 4 hours the volatiles were removed in vacuo. The residue was redissolved with dichoromethane and washed with aqueous NaHCO3 and the product purified by chromatography on a silica gel column, eluted with CH2Cl2-CH3COCH3 4/1, to give 180 mg (66% yield) of the title compound.

후처리

  1. customAfter 48 hours at room temperature the solvent was removed under reduced pressure
  2. washwashed with water
  3. dry with materialThe organic layer was then dried over sodium sulfate
  4. customevaporated
  5. additionThe crude was treated with 10 mL of a mixture dichloromethanetrifluoroacetic acid and after 4 hours the volatiles
  6. customwere removed in vacuo
  7. dissolutionThe residue was redissolved with dichoromethane
  8. washwashed with aqueous NaHCO3
  9. customthe product purified by chromatography on a silica gel column
  10. washeluted with CH2Cl2-CH3COCH3 4/1

출처 및 근거

ORD 기록
ord-966dcc7a22fb4bdbbd2e4fd7ba7eb8a4
출처 데이터셋
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08981089B2

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