Sodium Bicarbonate → (2S,3S)-1-tert-Butoxycarbonyl-3-(5-(1-cyanoethyl)-2-methoxybenzyl)amino-2-phenylpiperidine

HRID 481497

Reaktionsgleichung

Reaktionsgleichung von HRID 481497
[NH2:1][C@H:2]1[CH2:7][CH2:6][CH2:5][N:4]([C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])[C@H:3]1[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.[C:21]([CH:23]([C:25]1[CH:26]=[CH:27][C:28]([O:33][CH3:34])=[C:29]([CH:32]=1)[CH:30]=O)[CH3:24])#[N:22].[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+].C([O-])(O)=O.[Na+]>C(Cl)Cl>[C:11]([O:10][C:8]([N:4]1[CH2:5][CH2:6][CH2:7][C@H:2]([NH:1][CH2:30][C:29]2[CH:32]=[C:25]([CH:23]([C:21]#[N:22])[CH3:24])[CH:26]=[CH:27][C:28]=2[O:33][CH3:34])[C@@H:3]1[C:15]1[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=1)=[O:9])([CH3:14])([CH3:13])[CH3:12]

Komponenten

6

Edukt 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 11311934(2S,3S)-3-Amino-1-tert-butoxycarbonyl-2-phenylpiperidineHCID 190664875-(1-Cyanoethyl)-2-methoxybenzaldehyde

Produkt 1

HCID 57028229(2S,3S)-1-tert-Butoxycarbonyl-3-(5-(1-cyanoethyl)-2-methoxybenzyl)amino-2-phenylpiperidineAusbeute 103,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a stirred and ice-cooled solution of Compound 17 (160 mg, 0.60 mmol) and Compound 14 (120 mg, 0.60 mmol) in dry CH2Cl2 (5 ml) was added NaBH(OAc)3 (430 mg, 2.0 mmol) in one portion. The mixture was stirred at room temperature for 20 hours. The mixture was poured into NaHCO3 aq., and extracted with CH2Cl2. The combined extracts were dried (Na2SO4), and concentrated in vacuo to give Compound 18 as a yellow oil (280 mg).

Aufarbeitung

  1. stirringThe mixture was stirred at room temperature for 20 hours
  2. extractionextracted with CH2Cl2
  3. dry with materialThe combined extracts were dried (Na2SO4)
  4. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-6d9f25a64db247fdb285099b400e9bed
Quelldatensatz
uspto-grants-1998_08
Patentnummer
US05789423

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