Diisopropylethylamine → tert-Butyl{(1R,2R)-2-[({4-[6-(difluoromethoxy)pyrazolo[1,5-a]pyrimidin-3-yl]-5-methylthiophen-2-yl}carbonyl)amino]-3,3-difluorocyclohexyl}carbamate

HRID 1842608Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1842608
[F:1][CH:2]([F:22])[O:3][C:4]1[CH:5]=[N:6][C:7]2[N:8]([N:10]=[CH:11][C:12]=2[C:13]2[CH:14]=[C:15]([C:19](O)=[O:20])[S:16][C:17]=2[CH3:18])[CH:9]=1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.[NH2:50][C@H:51]1[C:56]([F:58])([F:57])[CH2:55][CH2:54][CH2:53][C@H:52]1[NH:59][C:60](=[O:66])[O:61][C:62]([CH3:65])([CH3:64])[CH3:63].C(N(C(C)C)CC)(C)C>CN(C=O)C.ClCCl>[C:62]([O:61][C:60](=[O:66])[NH:59][C@@H:52]1[CH2:53][CH2:54][CH2:55][C:56]([F:58])([F:57])[C@@H:51]1[NH:50][C:19]([C:15]1[S:16][C:17]([CH3:18])=[C:13]([C:12]2[CH:11]=[N:10][N:8]3[CH:9]=[C:4]([O:3][CH:2]([F:1])[F:22])[CH:5]=[N:6][C:7]=23)[CH:14]=1)=[O:20])([CH3:65])([CH3:63])[CH3:64]

Komponenten

7

Edukt 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 59603811tert-Butyl ((1R,2R)-2-amino-3,3-difluorocyclohexyl)carbamateHCID 683051734-[6-(Difluoromethoxy)pyrazolo[1,5-a]pyrimidin-3-yl]-5-methylthiophene-2-carboxylic acid

Produkt 1

HCID 89750994tert-Butyl{(1R,2R)-2-[({4-[6-(difluoromethoxy)pyrazolo[1,5-a]pyrimidin-3-yl]-5-methylthiophen-2-yl}carbonyl)amino]-3,3-difluorocyclohexyl}carbamateAusbeute 68,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

4-[6-(Difluoromethoxy)pyrazolo[1,5-a]pyrimidin-3-yl]-5-methylthiophene-2-carboxylic acid (0.768 g, 2.36 mmol) and BOP (3.13 g, 7.08 mmol) were dissolved in DMF (15.7 mL) and stirred at room temperature for 5 min. To the reaction solution was added tert-butyl [(1R,2R)-2-amino-3,3-difluorocyclohexyl]carbamate (0.650 g, 2.60 mmol) and diisopropylethyl amine (619, 3.54 mmol) and the reaction stirred at room temperature for 16 h. The reaction mixture was diluted with dichloromethane and washed with saturated sodium bicarbonate twice and brine once. The organic layer was dried with sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by column chromatography (0-100% EtOAc/Hex) to give the title compound (0.900 g, 1.61 mmol). LRMS (APCI) calc'd for (C24H27F4N5O4S) [M+H]+, 558.2; found 558.0.

Aufarbeitung

  1. stirringthe reaction stirred at room temperature for 16 h
  2. washwashed with saturated sodium bicarbonate twice
  3. dry with materialThe organic layer was dried with sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by column chromatography (0-100% EtOAc/Hex)

Quellen und Nachweise

ORD-Eintrag
ord-2597a562c507424a87e94c6f68fd807e
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08946237B2

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