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Diisopropyl Ether → HCID 178418649, 화합물

HRID 5530
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HRID 5530 반응식
[OH:1][C:2]1[C:7]([OH:8])=[CH:6][N:5]=[C:4]([C:9]([OH:11])=O)[CH:3]=1.ON1C2C=CC=CC=2N=N1.C1(N=C=NC2CCCCC2)CCCCC1.[NH2:37][C:38]1[S:42][N:41]=[C:40]([C:43](=[N:67][O:68][CH3:69])[C:44]([NH:46][C@@H:47]2[C:65](=[O:66])[N:49]3[C:50]([C:62]([O-:64])=[O:63])=[C:51]([CH2:54][N+:55]4([CH3:61])[CH2:60][CH2:59][NH:58][CH2:57][CH2:56]4)[CH2:52][S:53][C@H:48]23)=[O:45])[N:39]=1.C[Si](C)(C)NC(=O)C.C(OC(C)C)(C)C>CS(C)=O>[NH2:37][C:38]1[S:42][N:41]=[C:40]([C:43](=[N:67][O:68][CH3:69])[C:44]([NH:46][C@@H:47]2[C:65](=[O:66])[N:49]3[C:50]([C:62]([O-:64])=[O:63])=[C:51]([CH2:54][N+:55]4([CH3:61])[CH2:60][CH2:59][N:58]([C:9]([C:4]5[CH:3]=[C:2]([OH:1])[C:7]([OH:8])=[CH:6][N:5]=5)=[O:11])[CH2:57][CH2:56]4)[CH2:52][S:53][C@H:48]23)=[O:45])[N:39]=1
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참가 물질

8

반응물 6

HCID 7914Diisopropyl EtherHCID 10868DicyclohexylcarbodiimideHCID 25989Acetamide, N-(trimethylsilyl)-HCID 757711-HydroxybenzotriazoleHCID 1317181317beta-[2-(5-Amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido]-3-(1-methyl-1-piperazinio)methyl-3-cephem-4-carboxylateHCID 178418665HCID 178418665, 화합물

생성물

1
HCID 178418649HCID 178418649, 화합물수율 3.9%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매2회

실험 절차

To a solution of 4,5-dihydroxy-2-pyridinecarboxylic acid (3.1 g) and 1-hydroxybenzotriazole (4.0 g) in dimethyl sulfoxide (30 ml) was added N,N'-dicyclohexylcarbodiimide (6.2 g). After being stirred at room temperature for 1 hour, the reaction mixture was added to a solution of 7β-[2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido]-3-(1-methyl-1-piperazinio)methyl-3-cephem-4-carboxylate (syn isomer) (10.0 g) and N-trimethylsilylacetamide (3.0 g) in dimethyl sulfoxide (50 ml), and the stirring was continued for 30 minutes. The mixture was added dropwise to diisopropyl ether (1.5 l) and the resulting precipitate was collected by filtration, which was dissolved in an aqueous solution of sodium bicarbonate. After the insoluble material was filtered off, the filtrate was adjusted to pH 3.0 with 1N hydrochloric acid and subjected to column chromatography on "Diaion HP-20" with 5% aqueous isopropyl alcohol as an eluent. The eluate was lyophilized to give 7β-[2-(5-amino-1,2,4-thiadiazol-3-yl)-2-methoxyiminoacetamido]-3-[1-methyl-4-(4,5-dihydroxy-2-pyridylcarbonyl)-1-piperazinio]methyl-3-cephem-4-carboxylate (syn isomer) (0.5 g).

후처리

  1. waitthe stirring was continued for 30 minutes
  2. filtrationthe resulting precipitate was collected by filtration, which
  3. dissolutionwas dissolved in an aqueous solution of sodium bicarbonate
  4. filtrationAfter the insoluble material was filtered off

출처 및 근거

ORD 기록
ord-d576ec8dc5e942d7a4fd333adedd0dc3
출처 데이터셋
uspto-grants-1993_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05244890

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