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Diisopropylethylamine → (3R,4R)-4-(4-(Benzyloxy)phenylsulfonamido)-N-tert-butoxy-3-methyl-tetrahydro-2H-pyran-3-carboxamide

HRID 736785
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HRID 736785 반응식
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([S:15]([NH:18][C@@H:19]2[CH2:24][CH2:23][O:22][CH2:21][C@:20]2([CH3:28])[C:25](O)=[O:26])(=[O:17])=[O:16])=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CN([P+](ON1N=NC2C=CC=CC1=2)(N(C)C)N(C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C.Cl.[C:66]([O:70][NH2:71])([CH3:69])([CH3:68])[CH3:67]>CN(C=O)C.C(OCC)(=O)C>[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([S:15]([NH:18][C@@H:19]2[CH2:24][CH2:23][O:22][CH2:21][C@:20]2([CH3:28])[C:25]([NH:71][O:70][C:66]([CH3:69])([CH3:68])[CH3:67])=[O:26])(=[O:17])=[O:16])=[CH:13][CH:14]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
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참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 2777906O-tert-butylhydroxylamine hydrochlorideHCID 68819207(3R,4R)-4-(4-(benzyloxy)phenylsulfonamido)-3-methyl-tetrahydro-2H-pyran-3-carboxylic acid

생성물 1

HCID 86607886(3R,4R)-4-(4-(Benzyloxy)phenylsulfonamido)-N-tert-butoxy-3-methyl-tetrahydro-2H-pyran-3-carboxamide

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

(3R,4R)-4-(4-(Benzyloxy)phenylsulfonamido)-3-methyl-tetrahydro-2H-pyran-3-carboxylic acid (715 mg, 1.76 mmol) was dissolved in DMF (8 mL), and BOP reagent (1.01 g, 2.29 mmol, 1.3 eq), N,N-diisopropylethylamine (1.2 mL, 7.04 mmol, 4.0 eq) and O-(tert-butyl)hydroxylamine hydrochloride (332 mg, 2.64 mmol, 1.5 eq) were sequentially added. The reaction was stirred at room temperature overnight and then diluted with ethyl acetate (200 mL), and washed with water (3×50 mL). The aqueous layer was re-extracted with ethyl acetate. The combined organic layers were washed with brine, dried over MgSO4, and concentrated affording (3R,4R)-4-(4-(benzyloxy)phenylsulfonamido)-N-tert-butoxy-3-methyl-tetrahydro-2H-pyran-3-carboxamide as white fluffy powder that was used in the next step without purification. MS: (M+Na)+=499.0; (M−H)−=475.2.

후처리

  1. washwashed with water (3×50 mL)
  2. extractionThe aqueous layer was re-extracted with ethyl acetate
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-94726e1948fb4b179635004d2aaae05a
출처 데이터셋
uspto-grants-2009_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07595327B2

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