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Triethylamine → 3-Ethyl-7,8-dihydro-3H-pyrazolo[4',3':5,6]pyrido[3,4-d]pyridazine-6,9-dione

HRID 429048
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인쇄 미리보기

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HRID 429048 반응식
[CH2:1]([N:3]1[C:7]2=[N:8][CH:9]=[C:10]([C:15]([OH:17])=O)[C:11]([C:12](O)=[O:13])=[C:6]2[CH:5]=[N:4]1)[CH3:2].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)[N:37]=[N:36]C=2C=1.C(N(CC)CC)C.NN>C1COCC1.O>[CH2:1]([N:3]1[C:7]2[N:8]=[CH:9][C:10]3[C:15](=[O:17])[NH:36][NH:37][C:12](=[O:13])[C:11]=3[C:6]=2[CH:5]=[N:4]1)[CH3:2]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

8

반응물 5

HCID 8471TriethylamineHCID 9321HydrazineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 183543231-Ethyl-1H-pyrazolo[3,4-b]pyridine-4,5-dicarboxylic acid

생성물 1

HCID 109880883-Ethyl-7,8-dihydro-3H-pyrazolo[4',3':5,6]pyrido[3,4-d]pyridazine-6,9-dione

시약·촉매·용매 2

HCID 962Water용매HCID 8028Tetrahydrofuran용매

실험 절차

An alternative method could be used by starting with 1-ethyl-1H-pyrazolo[3,4-b]pyridine-4,5-dicarboxylic acid. The diacid was dissolved in anhydrous THF with EDAC.HCl (1.2 eq), HOBT (1.2 eq), and triethylamine (5.0 eq). To this solution was added anhydrous hydrazine (2.0 eq). The resulting solution was stirred at rt for 5 h and then diluted with water. The precipitated solid was collected by filtration to afford the title compound as a white solid.

후처리

  1. filtrationThe precipitated solid was collected by filtration

출처 및 근거

ORD 기록
ord-2cba928d48a94f33903ca38741afb7d2
출처 데이터셋
uspto-grants-2001_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06316438B1

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