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llms.txt · MCP 가이드개인정보처리방침 · 이용약관 · 지원v1.8.0
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Dichloromethane → (6R,7R)-7-amino-3-[[[5-(hydroxycarbamoyl)-2-(hydroxymethyl)-s-triazolo[1,5-a]pyrimidin-7-yl]thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

HRID 1755915
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HRID 1755915 반응식
[OH:1][NH:2][C:3]([C:5]1[CH:10]=[C:9]([SH:11])[N:8]2[N:12]=[C:13]([CH2:15][OH:16])[N:14]=[C:7]2[N:6]=1)=[O:4].CC(O[CH2:21][C:22]1[CH2:31][S:30][C@@H:25]2[C@H:26]([NH2:29])[C:27](=[O:28])[N:24]2[C:23]=1[C:32]([OH:34])=[O:33])=O.B(F)(F)F.CCOCC.ClCCl>S1(CCCC1)(=O)=O.ClCCl>[NH2:29][C@@H:26]1[C:27](=[O:28])[N:24]2[C@@H:25]1[S:30][CH2:31][C:22]([CH2:21][S:11][C:9]1[N:8]3[N:12]=[C:13]([CH2:15][OH:16])[N:14]=[C:7]3[N:6]=[C:5]([C:3](=[O:4])[NH:2][OH:1])[CH:10]=1)=[C:23]2[C:32]([OH:34])=[O:33]
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참가 물질

6

반응물 4

HCID 6344DichloromethaneHCID 8000Boron trifluoride etherateHCID 4413287-Aminocephalosporanic acidHCID 178523962HCID 178523962, 화합물

생성물 1

HCID 22855054(6R,7R)-7-amino-3-[[[5-(hydroxycarbamoyl)-2-(hydroxymethyl)-s-triazolo[1,5-a]pyrimidin-7-yl]thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid수율 40.4%

시약·촉매·용매

1
HCID 69712587Dichloromethane sulpholane용매

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온도
0 °C

실험 절차

N-Hydroxy-2-(hydroxymethyl)-7-mercapto-s-triazolo[1,5-a]pyrimidine-5-carboxamide (190 mg) (0.79 mmol) and 193 mg (0.71 mmol) of 7-amino-cephalosporanic acid are suspended in 20 ml of sulpholane/dichloromethane (1:1 v/v). 4.2 ml of boron trifluoride diethyl etherate are added thereto at 0° C. The mixture is stirred at 0° C. for 2 hours and at room temperature for 20 hours. 80 ml of dichloromethane are added. The precipitated material is separated and dissolved in water. The mixture is adjusted to pH 4 by the addition of saturated aqueous sodium hydrogen carbonate solution. The precipitated product is filtered off under suction and washed in sequence with water, ethanol and diethyl ether. There are obtained 130 mg of (6R,7R)-7-amino-3-[[[5-(hydroxycarbamoyl)-2-(hydroxymethyl)-s-triazolo[1,5-a]pyrimidin-7-yl]thio]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid as a beige powder.

후처리

  1. customat 0° C
  2. customThe precipitated material is separated
  3. dissolutiondissolved in water
  4. additionThe mixture is adjusted to pH 4 by the addition of saturated aqueous sodium hydrogen carbonate solution
  5. filtrationThe precipitated product is filtered off under suction
  6. washwashed in sequence with water, ethanol and diethyl ether

출처 및 근거

ORD 기록
ord-c7950d0bef4d466883eb5224485c2d2e
출처 데이터셋
uspto-grants-1995_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05438052

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