Acetonitrile → HCID 178501357, Verbindung

HRID 61480

Reaktionsgleichung

Reaktionsgleichung von HRID 61480
[CH3:1][O:2][C:3]([C@@H:5]1[C@@H:10]([C:11]([N:13]2[CH2:17][CH2:16][C@H:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[CH2:14]2)=[O:12])[CH2:9][CH2:8][NH:7][CH2:6]1)=[O:4].C(#N)C.C(N(CC)CC)C.[CH:34]1[CH:39]=[CH:38][C:37]([O:40][C:41](OC2C=CC=CC=2)=[N:42][C:43]#[N:44])=[CH:36][CH:35]=1>>[C:43](/[N:42]=[C:41](\[O:40][C:37]1[CH:38]=[CH:39][CH:34]=[CH:35][CH:36]=1)/[N:7]1[CH2:8][CH2:9][C@H:10]([C:11]([N:13]2[CH2:17][CH2:16][C@H:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)[CH2:14]2)=[O:12])[C@@H:5]([C:3]([O:2][CH3:1])=[O:4])[CH2:6]1)#[N:44]

Komponenten

5

Edukt 4

HCID 6342AcetonitrileHCID 8471TriethylamineHCID 688090Diphenyl N-CyanocarbonimidateHCID 67304902(3r,4s)-4-((r)-3-Phenyl-pyrrolidine-1-carbonyl)-piperidine-3-carboxylic acid methyl ester

Produkt 1

HCID 178501357HCID 178501357, VerbindungAusbeute 88,2 %

Reaktionsbedingungen

Temperatur
85 °C

Versuchsvorschrift

To a stirred solution of (3R,4S)-4-((R)-3-Phenyl-pyrrolidine-1-carbonyl)-piperidine-3-carboxylic acid methyl ester (654 mg, 0.00207 mol) in anhydrous acetonitrile (11.0 mL, 0.211 mol) at rt was added triethylamine (0.579 mL, 0.00413 mol) and diphenyl cyanocarbonimidate (762 mg, 0.00310 mol). The reaction mixture was heated to reflux (oil bath temperature: 85° C.) for 18 h. The reaction mixture was concentrated in vacuo. The residue was purified by Combiflash with 40-90% EtOAc/Hex to give the product as a colorless solid (841 mg, 88% in yield). MS (ESI): (M+H)+=461.1.

Aufarbeitung

  1. temperatureThe reaction mixture was heated
  2. concentrationThe reaction mixture was concentrated in vacuo
  3. customThe residue was purified by Combiflash with 40-90% EtOAc/Hex

Quellen und Nachweise

ORD-Eintrag
ord-ecf3abdefd1f45b3ac384de857d5b003
Quelldatensatz
uspto-grants-2016_09
Patentnummer
US09440958B2

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