Acetic Acid → (1R,2S)-2-(4-chlorophenyl)-1'-(2-(4-isopropylpiperazin-1-yl)ethyl)spiro[cyclopropane-1,3'-indolin]-2'-one

HRID 1805327Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1805327
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]2[C@:10]3([C:18]4[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=4)[N:12]([CH2:19][CH:20]=O)[C:11]3=[O:22])[CH2:9]2)=[CH:4][CH:3]=1.[CH:23]([N:26]1[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]1)([CH3:25])[CH3:24].C(O)(=O)C.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C@H:8]2[C@@:10]3([C:18]4[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=4)[N:12]([CH2:19][CH2:20][N:29]4[CH2:30][CH2:31][N:26]([CH:23]([CH3:25])[CH3:24])[CH2:27][CH2:28]4)[C:11]3=[O:22])[CH2:9]2)=[CH:4][CH:3]=1

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 780131-IsopropylpiperazineHCID 5049666Sodium triacetoxyborohydrideHCID 58305328(1S,2R)-2-(2-(4-chlorophenyl)-2'-oxospiro[cyclopropane-1,3'-indoline]-1'-yl)acetaldehyde

Produkt 1

HCID 58305276(1R,2S)-2-(4-chlorophenyl)-1'-(2-(4-isopropylpiperazin-1-yl)ethyl)spiro[cyclopropane-1,3'-indolin]-2'-oneAusbeute 82,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A mixture of (1R,2S) and (1S,2R)-2-(2-(4-chlorophenyl)-2′-oxospiro[cyclopropane-1,3′-indoline]-1′-yl)acetaldehyde (0.1 mmol), (1-Isopropyl)piperazine (0.15 mmol) and acetic acid (catalytic amount) in DCM (2 ml) was stirred for 20 minutes at room temperature. The mixture was cooled to 0° C. and NaBH(OAc)3 (2 mmol) was added carefully. The mixture was warmed to room temperature and stirred for 14 hours at room temperature. The mixture was concentrated under reduced pressure and dissolved in DMF. Purification by preparative HPLC gave the title product as colorless oil (35 mg). LC/MS m/e calcd. for C25H30ClN3O: 423, observed (M+H)+: 424.1 1HNMR (400 MHz, MeOD-d4) δppm 1.37 (d, J=6.57 Hz, 6 H) 2.18 (dd, J=8.46, 5.94 Hz, 2 H) 2.46-2.64 (m, 1H) 2.85 (d, J=3.54 Hz, 2 H) 3.22 (s, 2 H) 3.50 (d, J=6.57 Hz, 2 H) 3.90-4.27 (m, 2 H) 6.09 (d, J=7.58 Hz, 1H) 6.76 (s, 1 H) 7.10 (d, J=7.83 Hz, 1 H) 7.16-7.25 (m, 3 H) 7.33 (d, J=8.59 Hz, 2 H).

Aufarbeitung

  1. temperatureThe mixture was cooled to 0° C.
  2. temperatureThe mixture was warmed to room temperature
  3. stirringstirred for 14 hours at room temperature
  4. concentrationThe mixture was concentrated under reduced pressure
  5. dissolutiondissolved in DMF
  6. customPurification by preparative HPLC

Quellen und Nachweise

ORD-Eintrag
ord-ee205c3da47c43fbb058c4a10cc602fb
Quelldatensatz
uspto-grants-2013_01
Patentnummer
US08354443B2

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