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Ethyl Acetate → 2-{4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}-2-methylpropan-1-ol

HRID 1530362
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Reaktionsgleichung

Reaktionsgleichung von HRID 1530362
C[O:2][C:3](=O)[C:4]([N:7]1[CH2:12][CH2:11][CH:10]([S:13][C:14]2[CH:15]=[CH:16][C:17]3[O:26][CH2:25][CH2:24][N:23]4[C:19](=[N:20][C:21]([C:27]5[N:28]([CH:32]([CH3:34])[CH3:33])[N:29]=[CH:30][N:31]=5)=[CH:22]4)[C:18]=3[CH:35]=2)[CH2:9][CH2:8]1)([CH3:6])[CH3:5].[H-].[H-].[H-].[H-].[Li+].[Al+3].CCOC(C)=O>C1COCC1>[CH:32]([N:28]1[C:27]([C:21]2[N:20]=[C:19]3[N:23]([CH2:24][CH2:25][O:26][C:17]4[CH:16]=[CH:15][C:14]([S:13][CH:10]5[CH2:9][CH2:8][N:7]([C:4]([CH3:6])([CH3:5])[CH2:3][OH:2])[CH2:12][CH2:11]5)=[CH:35][C:18]=43)[CH:22]=2)=[N:31][CH:30]=[N:29]1)([CH3:34])[CH3:33]
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Komponenten

5

Edukt 3

HCID 8857Ethyl AcetateHCID 21226445Aluminium lithium hydrideHCID 683131132-{4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}-2-methylpropionic acid methyl ester

Produkt 1

HCID 683128922-{4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}-2-methylpropan-1-olAusbeute 98 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To an ice-cooled solution of 2-{4-[2-(2-isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}-2-methylpropionic acid methyl ester (0.485 mmol) in THF (20 mL) was added LiAlH4 (1.0M in THF, 1.5 mL) and the mixture was stirred at 0° C. for 1 h. To the reaction mixture was added EtOAc (0.5 mL) and stirring was continued for 10 min. Volatiles were then removed under reduced pressure and the resulting residue was partitioned between DCM and 10% aq. solution of Rochelle's salt. The suspension was stirred for 20 min and then filtered through a pad of Celite®. The filtrate was extracted with DCM and the combined organic phases were washed with water, followed by brine, then dried and concentrated in vacuo. The resulting residue was purified by column chromatography (Si-PCC, gradient 2-13% 2M NH3/MeOH in DCM) affording 2-{4-[2-(2-Isopropyl-2H-[1,2,4]triazol-3-yl)-4,5-dihydro-6-oxa-1,3a-diazabenzo[e]azulen-9-ylsulfanyl]piperidin-1-yl}-2-methylpropan-1-ol (229 mg, 98% over two steps). LCMS: RT 2.13/2.19 min [M+H]+ 483.2

Aufarbeitung

  1. stirringstirring
  2. waitwas continued for 10 min
  3. customVolatiles were then removed under reduced pressure
  4. customthe resulting residue was partitioned between DCM and 10% aq. solution of Rochelle's salt
  5. stirringThe suspension was stirred for 20 min
  6. filtrationfiltered through a pad of Celite®
  7. extractionThe filtrate was extracted with DCM
  8. washthe combined organic phases were washed with water
  9. customdried
  10. concentrationconcentrated in vacuo
  11. customThe resulting residue was purified by column chromatography (Si-PCC, gradient 2-13% 2M NH3/MeOH in DCM)

Quellen und Nachweise

ORD-Eintrag
ord-4071d98d798e4c36a7f7ef49eb54fd85
Quelldatensatz
uspto-grants-2015_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09090628B2

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