Trifluoroacetic acid → HCID 15435851, 화합물

HRID 356239노트

반응식

HRID 356239 반응식
C(OC([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH2:10][CH:9]1[CH2:17][O:18][C:19]1[CH:51]=[CH:50][C:22]([CH2:23][CH:24]2[S:28][C:27](=[O:29])[N:26](C(C3C=CC=CC=3)(C3C=CC=CC=3)C3C=CC=CC=3)[C:25]2=[O:49])=[CH:21][CH:20]=1)=O)(C)(C)C.FC(F)(F)C(O)=O.C(=O)([O-])O.[Na+]>O>[NH:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH2:10][CH:9]1[CH2:17][O:18][C:19]1[CH:51]=[CH:50][C:22]([CH2:23][CH:24]2[S:28][C:27](=[O:29])[NH:26][C:25]2=[O:49])=[CH:21][CH:20]=1

참가 물질

5

반응물 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 23298282HCID 23298282, 화합물

생성물 1

HCID 15435851HCID 15435851, 화합물수율 22.7%

시약·촉매·용매 1

HCID 962Water용매

실험 절차

A mixture of 3.55 g of 5-[4-(1-t-butoxycarbonyl-indolin-2-ylmethoxy)benzyl]-3-triphenylmethylthiazolidine-2,4-dione (prepared as described in Preparation 4) and 30 ml of trifluoroacetic acid was stirred at room temperature for 1 hour. At the end of this time, the reaction mixture was poured into water and the aqueous mixture was neutralized by the addition of sodium hydrogencarbonate, after which it was extracted with ethyl acetate. The extract was washed with an aqueous solution of sodium chloride and dried over anhydrous sodium sulfate, after which the solvent was removed by distillation under reduced pressure. The residue thus obtained was purified by column chromatography through silica gel, using a 2:1 by volume mixture of hexane and ethyl acetate as the eluent, to give 0.41 g of the title compound. This product was dissolved in ethanol and precipitated by adding water, to give a powder melting at 55.8°-58.2° C.

후처리

  1. extractionafter which it was extracted with ethyl acetate
  2. washThe extract was washed with an aqueous solution of sodium chloride
  3. dry with materialdried over anhydrous sodium sulfate
  4. customafter which the solvent was removed by distillation under reduced pressure
  5. customThe residue thus obtained
  6. customwas purified by column chromatography through silica gel
  7. additionby volume mixture of hexane and ethyl acetate as the eluent

출처 및 근거

ORD 기록
ord-e55a92ac805d4c41a25ebb45d70e2500
출처 데이터셋
uspto-grants-1998_11
특허 번호
US05834501

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