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Formaldehyde → 5,11-Dihydro-11-[1-oxo-2-methyl-6-(4-methyl-1-piperazinyl)-4-hexynyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one

HRID 4175
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HRID 4175 반응식
[O:1]=[C:2]([N:8]1[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=2[C:12](=[O:19])[NH:11][C:10]2[CH:20]=[CH:21][CH:22]=[N:23][C:9]1=2)[CH:3]([CH3:7])[CH2:4][C:5]#[CH:6].C=O.[CH3:26][N:27]1[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]1.[C:33](O)(=O)/C=C\C(O)=O>O.[Cu]Cl.O1CCOCC1>[O:1]=[C:2]([N:8]1[C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=2[C:12](=[O:19])[NH:11][C:10]2[CH:20]=[CH:21][CH:22]=[N:23][C:9]1=2)[CH:3]([CH3:7])[CH2:4][C:5]#[C:6][CH2:26][N:27]1[CH2:32][CH2:31][N:30]([CH3:33])[CH2:29][CH2:28]1
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참가 물질

8

반응물 4

HCID 712FormaldehydeHCID 531671-MethylpiperazineHCID 444266Maleic AcidHCID 137292075,11-Dihydro-11-[1-oxo-2-methyl-4-pentynyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one

생성물 1

HCID 139243965,11-Dihydro-11-[1-oxo-2-methyl-6-(4-methyl-1-piperazinyl)-4-hexynyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one

시약·촉매·용매 3

HCID 62652
Cuprous chloride
촉매
HCID 962Water용매
HCID 312751,4-Dioxane용매

실험 절차

A reaction mixture consisting of 36.6 g (0.12 mol) of 5,11-dihydro-11-[1-oxo-2-methyl-4-pentynyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one, 4 g (0.13 mol) of paraformaldehyde, 13.2 g (0.13 mol) of N-methylpiperazine, 0.2 g of copper(I) chloride and 600 ml of dioxan is refluxed for 2 hours. After the reaction has ended the mixture is filtered over activated charcoal to remove the insoluble components and the filtrate is evaporated to dryness in vacuo. In order to purify it, the crude product is suspended in a solution of 15.4 g (0.13 mol) of maleic acid in 600 ml of water and stirred for 1 hour at ambient temperature. The insoluble matter is filtered off, the filtrate is made alkaline by the addition of potassium carbonate and the resin precipitated is taken up in 600 ml of methylene chloride. After drying over magnesium sulphate, the solution is evaporated to dryness in vacuo. The crystalline residue is decocted with 150 ml of ethyl acetate and suction filtered after cooling. By digesting it in a little ethyl acetate a crystalline product is obtained which melts at 212° to 214° C. after washing with ether.

후처리

  1. temperatureis refluxed for 2 hours
  2. filtrationis filtered over activated charcoal
  3. customto remove the insoluble components
  4. customthe filtrate is evaporated to dryness in vacuo
  5. customIn order to purify it
  6. filtrationThe insoluble matter is filtered off
  7. additionby the addition of potassium carbonate
  8. customthe resin precipitated
  9. dry with materialAfter drying over magnesium sulphate
  10. customthe solution is evaporated to dryness in vacuo
  11. filtrationfiltered
  12. temperatureafter cooling
  13. customis obtained which melts at 212° to 214° C.
  14. washafter washing with ether

출처 및 근거

ORD 기록
ord-6577de97230742bfbdfb63b5e64d45dc
출처 데이터셋
uspto-grants-1988_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04724236

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