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Acetic Acid → Ammonium Hydroxide

HRID 75598
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 75598
C([O:8][C:9]([N:11]1[CH2:16][CH2:15][CH:14]([N:17]2[C:21]([NH:22][C:23]([NH:25][C@@H:26]3[C:35]4[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=4)[C@H:29]([O:36][C:37]4[CH:38]=[CH:39][C:40]5[N:41]([C:43]([CH:46]([CH3:48])[CH3:47])=[N:44][N:45]=5)[CH:42]=4)[CH2:28][CH2:27]3)=[O:24])=[CH:20][C:19]([C:49]([CH3:52])([CH3:51])[CH3:50])=[N:18]2)[CH2:13][CH2:12]1)=O)C1C=CC=CC=1.C=O.CC(O)=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl>[NH4+:11].[OH-:8].[C:49]([C:19]1[CH:20]=[C:21]([NH:22][C:23]([NH:25][C@@H:26]2[C:35]3[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=3)[C@H:29]([O:36][C:37]3[CH:38]=[CH:39][C:40]4[N:41]([C:43]([CH:46]([CH3:48])[CH3:47])=[N:44][N:45]=4)[CH:42]=3)[CH2:28][CH2:27]2)=[O:24])[N:17]([CH:14]2[CH2:13][CH2:12][N:11]([CH3:9])[CH2:16][CH2:15]2)[N:18]=1)([CH3:52])([CH3:51])[CH3:50]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 176Acetic AcidHCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 86686695HCID 86686695, Verbindung

Produkt 2

HCID 14923Ammonium HydroxideAusbeute 0,1 %
HCID 71598646
1-[5-tert-Butyl-2-(1-methyl-piperidin-4-yl)-2H-pyrazol-3-yl]-3-[(1S,4R)-4-(3-isopropyl-[1,2,4]triazolo[4,3-a]pyridin-6-yloxy)-1,2,3,4-tetrahydro-naphthalen-1-yl]-urea

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A mixture of Example 16 (half crude material, assume 64.8 mg, 0.114 mmol) and formaldehyde (37% in water, 0.092 mL, 1.14 mmol) in DCM (2 mL) was stirred at RT for 10 min, then AcOH (0.013 mL, 0.227 mmol) and NaBH(OAc)3 (48.1 mg, 0.227 mmol) were added sequentially, and the solution stirred at RT for 3 h. The solution was concentrated in vacuo to ˜0.5 mL volume, applied to an SCX-2 cartridge (2 g) and washed with MeOH (15 mL). The product was eluted with 2M NH3 in MeOH (10 mL); concentration in vacuo left a pale yellow solid (82.6 mg). HPLC (XBridge C18, 30-98% MeCN in H2O, 0.1% NH4OH) gave the title compound as a white solid after freeze-drying (30.8 mg, 46%). LCMS (Method 5): Rt 3.18 min, m/z 585 [MH+]. 1H NMR (400 MHz, d6-DMSO): 1.21 (9H, s), 1.38 (H, d, J 6.8), 1.40 (3H, d, J 6.8), 1.75 (2H, t, J 12.2), 1.91-2.04 (6H, m), 2.07-2.17 (2H, m), 2.18 (3H, s), 2.87 (2H, d, J 10.6), 3.58 (1H, sept, J 6.8), 3.88 (1H, m), 4.88 (1H, m), 5.56 (1H, t, J 4.7), 6.02 (1H, s), 6.89 (1H, d, J 8.6), 7.19 (1H, dd, J 9.8, 2.1), 7.31 (1H, m), 7.36-7.43 (3H, m), 7.70 (1H, d, J 9.8), 8.06 (1H, s), 8.22 (1H, d, J 2.0).

Aufarbeitung

  1. concentrationThe solution was concentrated in vacuo to ˜0.5 mL volume
  2. washwashed with MeOH (15 mL)
  3. washThe product was eluted with 2M NH3 in MeOH (10 mL)
  4. concentrationconcentration in vacuo
  5. waitleft a pale yellow solid (82.6 mg)

Quellen und Nachweise

ORD-Eintrag
ord-ecfa033410c84a599f9bb528277c35d3
Quelldatensatz
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08835431B2

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