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Hydrochloric Acid → 7-[2-(3-isoxazoly)methoxyimino-2-(2-aminothiazol-4-yl)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid

HRID 2412758
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HRID 2412758 반응식
[O:1]1[CH:5]=[CH:4][C:3]([CH2:6][O:7][N:8]=[C:9]([C:35]2[N:36]=[C:37]([NH:40]C=O)[S:38][CH:39]=2)[C:10]([NH:12][CH:13]2[C:33](=[O:34])[N:15]3[C:16]([C:30]([OH:32])=[O:31])=[C:17]([CH2:20][S:21][C:22]4[N:26]([CH2:27][CH:28]=[CH2:29])[N:25]=[N:24][N:23]=4)[CH2:18][S:19][C@H:14]23)=[O:11])=[N:2]1.Cl.CO>O1CCCC1>[O:1]1[CH:5]=[CH:4][C:3]([CH2:6][O:7][N:8]=[C:9]([C:35]2[N:36]=[C:37]([NH2:40])[S:38][CH:39]=2)[C:10]([NH:12][CH:13]2[C:33](=[O:34])[N:15]3[C:16]([C:30]([OH:32])=[O:31])=[C:17]([CH2:20][S:21][C:22]4[N:26]([CH2:27][CH:28]=[CH2:29])[N:25]=[N:24][N:23]=4)[CH2:18][S:19][C@H:14]23)=[O:11])=[N:2]1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 887MethanolHCID 1317125837-[2-(3-isoxazolyl)methoxyimino-2-(2-formamidothiazol-4-yl)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid

생성물 1

HCID 1317125907-[2-(3-isoxazoly)methoxyimino-2-(2-aminothiazol-4-yl)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid수율 45.3%

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매

실험 절차

A mixture of 7-[2-(3-isoxazolyl)methoxyimino-2-(2-formamidothiazol-4-yl)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (syn isomer) (1.5 g), conc.hydrochloric acid (0.497 g), methanol (15 ml) and tetrahydrofuran (3 ml) was stirred for 2 hours at ambient temperature. The solvent was distilled off under reduced pressure and the residue was dissolved in a saturated aqueous solution of sodium bicarbonate. The aqueous solution was washed with ethyl acetate (25 ml) and adjusted to pH 1.5 with 10% hydrochloric acid. Precipitates were collected by filtration, washed with water and dried to give 7-[2-(3-isoxazolyl)methoxyimino-2-(2-aminothiazol-4-yl)acetamido]-3-(1-allyl-1H-tetrazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid (syn isomer)(0.65 g).

후처리

  1. distillationThe solvent was distilled off under reduced pressure
  2. dissolutionthe residue was dissolved in a saturated aqueous solution of sodium bicarbonate
  3. washThe aqueous solution was washed with ethyl acetate (25 ml)
  4. customPrecipitates
  5. filtrationwere collected by filtration
  6. washwashed with water
  7. customdried

출처 및 근거

ORD 기록
ord-d2e67befaf3845978f44109507915f80
출처 데이터셋
uspto-grants-1985_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04493833

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