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Trifluoroacetic acid → N-[(4aR,7aR)-7a-Isothiazol-5-yl-4a,5,6,7-tetrahydro-4H-pyrrolo[3,4-d][1,3]thiazin-2-yl]benzamide

HRID 338134
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HRID 338134 반응식
[C:1]([NH:9][C:10]1[S:11][CH2:12][C@@H:13]2[CH2:18][N:17](C(OC(C)(C)C)=O)[CH2:16][C@:14]2([C:26]2[S:30][N:29]=[CH:28][CH:27]=2)[N:15]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N1C[C@@H]2[C@@](C3SC=C(Br)C=3)(N=C(NC(=O)C3C=CC=CC=3)SC2)C1)C=C.FC(F)(F)C(O)=O>ClCCl>[S:30]1[C:26]([C@:14]23[CH2:16][NH:17][CH2:18][C@H:13]2[CH2:12][S:11][C:10]([NH:9][C:1](=[O:8])[C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)=[N:15]3)=[CH:27][CH:28]=[N:29]1
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참가 물질

5

반응물 3

HCID 6422Trifluoroacetic acidHCID 86762226tert-butyl (4aR,7aR)-2-benzamido-7a-isothiazol-5-yl-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazine-6-carboxylateHCID 86762227N-[(4aR,7aR)-6-Allyl-7a-(4-bromo-2-thienyl)-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazin-2-yl]benzamide

생성물 1

HCID 86762225N-[(4aR,7aR)-7a-Isothiazol-5-yl-4a,5,6,7-tetrahydro-4H-pyrrolo[3,4-d][1,3]thiazin-2-yl]benzamide수율 87%

시약·촉매·용매

1
HCID 6344Dichloromethane용매

실험 절차

To a room temperature solution of tert-butyl (4aR,7aR)-2-benzamido-7a-isothiazol-5-yl-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazine-6-carboxylate, isomer 2 (1.26 g, 2.83 mmol) in dichloromethane (25 mL) is added trifluoroacetic acid (4.29 mL, 56.68 mmol) drop wise. The resultant solution is stirred for 18 hours at ambient temperature. The solvent is removed under vacuum. The mixture is diluted with ethyl acetate followed by saturated sodium bicarbonate. The layers are separated and the aqueous phase is re-extracted with ethyl acetate (3×). The combined organic layers are dried over sodium sulfate and the solvent is removed under vacuum to give the title compound (850 mg, 2.46 mmol, 87%). ES/MS (m/e): 345 (M+H).

후처리

  1. customThe solvent is removed under vacuum
  2. additionThe mixture is diluted with ethyl acetate
  3. customThe layers are separated
  4. extractionthe aqueous phase is re-extracted with ethyl acetate (3×)
  5. dry with materialThe combined organic layers are dried over sodium sulfate
  6. customthe solvent is removed under vacuum

출처 및 근거

ORD 기록
ord-299511b9e9214205b23f9ff505fafabd
출처 데이터셋
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08889856B2

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