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Trimethylaluminum → HCID 178489784, Verbindung

HRID 1911480
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1911480
C[Al](C)C.[CH:5]1([N:8]2[CH2:14][CH2:13][CH2:12][N:11]([C:15]3[N:20]=[CH:19][C:18]([C:21]([O:23]C)=O)=[CH:17][N:16]=3)[CH2:10][CH2:9]2)[CH2:7][CH2:6]1.[CH3:25][O:26][C:27]1[CH:28]=[C:29]([CH2:35][CH2:36][C:37]2[CH:38]=[C:39]([NH2:42])[NH:40][N:41]=2)[CH:30]=[C:31]([O:33][CH3:34])[CH:32]=1>C1(C)C=CC=CC=1>[CH:5]1([N:8]2[CH2:14][CH2:13][CH2:12][N:11]([C:15]3[N:16]=[CH:17][C:18]([C:21]([NH:42][C:39]4[NH:40][N:41]=[C:37]([CH2:36][CH2:35][C:29]5[CH:30]=[C:31]([O:33][CH3:34])[CH:32]=[C:27]([O:26][CH3:25])[CH:28]=5)[CH:38]=4)=[O:23])=[CH:19][N:20]=3)[CH2:10][CH2:9]2)[CH2:6][CH2:7]1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 16682925TrimethylaluminumHCID 66589974Methyl 2-(4-cyclopropyl-1,4-diazepan-1-yl)pyrimidine-5-carboxylateHCID 178489815HCID 178489815, Verbindung

Produkt 1

HCID 178489784HCID 178489784, VerbindungAusbeute 1,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

Trimethylaluminium (1.402 ml, 2.80 mmol) was added dropwise to a stirred suspension of methyl 2-(4-cyclopropyl-1,4-diazepan-1-yl)pyrimidine-5-carboxylate (310 mg, 1.12 mmol) and 5-[2-(3,5-dimethoxyphenyl)ethyl]-2H-pyrazol-3-amine (277 mg, 1.12 mmol) in toluene (5.61 ml) at 25° C. The resulting solution was stirred at 60° C. for 18 h. The cooled reaction mixture was quenched into methanol (50 mL) and treated with HCl (2M aqueous solution, to pH7 or lower) and purified by ion exchange chromatography, using a SCX column. The desired product was eluted from the column using 7M NH3/MeOH and evaporated to dryness to afford impure product. The crude product was purified by preparative HPLC, using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford the title compound (8.00 mg, 1%) as a cream solid. Some impure fractions were combined and concentrated to dryness and purified by crystallisation from MeCN to afford the title compound (51 mg, 9%) as a cream solid.

Aufarbeitung

  1. customThe cooled reaction mixture
  2. customwas quenched into methanol (50 mL)
  3. additiontreated with HCl (2M aqueous solution, to pH7 or lower)
  4. custompurified by ion exchange chromatography
  5. washThe desired product was eluted from the column
  6. customevaporated to dryness
  7. customto afford impure product
  8. customThe crude product was purified by preparative HPLC
  9. additionFractions containing the desired compound
  10. customwere evaporated to dryness

Quellen und Nachweise

ORD-Eintrag
ord-55d897091436495d8fb8bf83144ce9f3
Quelldatensatz
uspto-grants-2013_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08604022B2

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