Chloroform → 7-{[(1-{[(2R)-3,8-Dioxo-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylen-2-yl]methyl}-4-piperidinyl)amino]methyl}-2,3-dihydro-1,4-benzodioxin-5-carbonitrile hydrochloride

HRID 1943228Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1943228
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][C@H:9]2[N:19]3[C:20]4[N:11]([C:12](=[O:22])[CH:13]=[CH:14][C:15]=4[N:16]=[CH:17][C:18]3=[O:21])[CH2:10]2)[CH2:4][CH2:3]1.[CH:23]([C:25]1[CH:26]=[C:27]([C:35]#[N:36])[C:28]2[O:33][CH2:32][CH2:31][O:30][C:29]=2[CH:34]=1)=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C([O-])(O)=O.[Na+].C(Cl)(Cl)[Cl:57]>CO>[ClH:57].[O:21]=[C:18]1[CH:17]=[N:16][C:15]2=[C:20]3[N:19]1[C@H:9]([CH2:8][N:5]1[CH2:6][CH2:7][CH:2]([NH:1][CH2:23][C:25]4[CH:26]=[C:27]([C:35]#[N:36])[C:28]5[O:33][CH2:32][CH2:31][O:30][C:29]=5[CH:34]=4)[CH2:3][CH2:4]1)[CH2:10][N:11]3[C:12](=[O:22])[CH:13]=[CH:14]2

Komponenten

7

Edukt 5

HCID 6212ChloroformHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 57423114HCID 57423114, VerbindungHCID 58200877(2R)-2-[(4-Amino-1-piperidinyl)methyl]-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione

Produkt 1

HCID 685971587-{[(1-{[(2R)-3,8-Dioxo-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylen-2-yl]methyl}-4-piperidinyl)amino]methyl}-2,3-dihydro-1,4-benzodioxin-5-carbonitrile hydrochlorideAusbeute 42,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

A suspension of (2R)-2-[(4-amino-1-piperidinyl)methyl]-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione (for a preparation see Example 16A(j)) (60 mg, 0.199 mmol) and 7-formyl-2,3-dihydro-1,4-benzodioxin-5-carbonitrile (for a synthesis see WO06014580 Preparation 13 or WO2007122258, Example 31(d)) (37.7 mg, 0.199 mmol) in chloroform (2 ml) and methanol (0.100 ml) at room temperature under nitrogen was treated with sodium triacetoxyborohydride (127 mg, 0.597 mmol) and stirred for 90 min. This was then treated with saturated aqueous NaHCO3(10 ml) and extracted with 20% methanol/DCM (3×25 ml). The combined organic extracts were dried (NaSO4), filtered, evaporated and purified using silica chromatography (0-20% methanol/DCM) to give the free base of the title compound as a yellow gum (40 mg, 42.3%).

Aufarbeitung

  1. extractionextracted with 20% methanol/DCM (3×25 ml)
  2. dry with materialThe combined organic extracts were dried (NaSO4)
  3. filtrationfiltered
  4. customevaporated
  5. custompurified

Quellen und Nachweise

ORD-Eintrag
ord-1570d810b1ee476780e0b5594366d4ac
Quelldatensatz
uspto-grants-2013_03
Patentnummer
US08389524B2

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