Sodium hydride → 3-Amino-1-cyclopropyl-6-fluoro-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-7-thiosulfonic acid

HRID 10326

반응식

HRID 10326 반응식
[CH:1]1([N:4]2[C:9]3[N:10]=[C:11]([S:15](=[S:18])([OH:17])=[O:16])[C:12]([F:14])=[CH:13][C:8]=3[C:7](=[O:19])[NH:6][C:5]2=[O:20])[CH2:3][CH2:2]1.[H-].[Na+].[N+:23](C1C=C([N+]([O-])=O)C=CC=1NO)([O-])=O>CN(C)C=O.O1CCOCC1>[NH2:23][N:6]1[C:7](=[O:19])[C:8]2[CH:13]=[C:12]([F:14])[C:11]([S:15](=[S:18])([OH:17])=[O:16])=[N:10][C:9]=2[N:4]([CH:1]2[CH2:3][CH2:2]2)[C:5]1=[O:20]

참가 물질

5

반응물 3

HCID 24758Sodium hydrideHCID 5743493N-Hydroxy-2,4-dinitrobenzenamineHCID 219793641-Cyclopropyl-6-fluoro-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-7-thiosulfonic acid

생성물 1

HCID 219790013-Amino-1-cyclopropyl-6-fluoro-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-7-thiosulfonic acid수율 76.7%

시약·촉매·용매 1

HCID 217120691,4-dioxane N,N-dimethylformamide용매

실험 절차

A solution of 0.47 g (1.57 mmol) of 1-cyclopropyl-6-fluoro-2,4-dioxo-1,2,3,4-tetrahydro-pyrido[2,3-d]pyrimidine-7-thiosulfonic acid (Example 35) in 20 mL of dimethylformamide/dioxane (1:1) is treated portionwise with 0.08 g (2.0 mmol) of 60% sodium hydride/mineral oil. The reaction is stirred at room temperature for 1 hour and 0.32 g (1.6 mmol) of 2,4-dinitrophenylhydroxylamine is added all at once. After stirring at room temperature overnight, the dioxane is removed in vacuo and the residue is diluted to 100 mL with ice and water and stirred at 5° C. for 1 hour. The aqueous solution is extracted with ethyl acetate (3×50 mL) with the combined organic layers being washed with water, dried (MgSO4), filtered and evaporated in vacuo to give 0.4 g of the title compound, mp 167–169° C.

후처리

  1. stirringAfter stirring at room temperature overnight
  2. customthe dioxane is removed in vacuo
  3. additionthe residue is diluted to 100 mL with ice and water
  4. stirringstirred at 5° C. for 1 hour
  5. extractionThe aqueous solution is extracted with ethyl acetate (3×50 mL) with the combined organic layers
  6. washbeing washed with water
  7. dry with materialdried (MgSO4)
  8. filtrationfiltered
  9. customevaporated in vacuo

출처 및 근거

ORD 기록
ord-4df6972c6e4c48278a3fccf487f8d5a4
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07094780B1

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