3,4-Bis(cyclopropylmethoxy)benzoyl chloride → (+/-)-Acetic acid (1RS,3RS,4RS)-4-{[1-(3,4-bis-cyclopropylmethoxyphenyl)methanoyl]-amino}-3-(3,4-dimethoxyphenyl)cyclohexyl ester

HRID 2054431Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2054431
[NH2:1][CH:2]1[CH2:7][CH2:6][CH:5]([O:8][C:9](=[O:11])[CH3:10])[CH2:4][CH:3]1[C:12]1[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[C:14]([O:20][CH3:21])[CH:13]=1.[CH:22]1([CH2:25][O:26][C:27]2[CH:28]=[C:29]([CH:33]=[CH:34][C:35]=2[O:36][CH2:37][CH:38]2[CH2:40][CH2:39]2)[C:30](Cl)=[O:31])[CH2:24][CH2:23]1>C(Cl)Cl.C(N(CC)CC)C>[CH:22]1([CH2:25][O:26][C:27]2[CH:28]=[C:29]([C:30]([NH:1][CH:2]3[CH2:7][CH2:6][CH:5]([O:8][C:9](=[O:11])[CH3:10])[CH2:4][CH:3]3[C:12]3[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[C:14]([O:20][CH3:21])[CH:13]=3)=[O:31])[CH:33]=[CH:34][C:35]=2[O:36][CH2:37][CH:38]2[CH2:39][CH2:40]2)[CH2:24][CH2:23]1

Komponenten

5

Edukt 2

HCID 179890793,4-Bis(cyclopropylmethoxy)benzoyl chlorideHCID 67022805acetic acid (1RS,3RS,4RS)-4-amino-3-(3,4-dimethoxyphenyl)cyclohexyl ester2×

Produkt 1

HCID 86601277(+/-)-Acetic acid (1RS,3RS,4RS)-4-{[1-(3,4-bis-cyclopropylmethoxyphenyl)methanoyl]-amino}-3-(3,4-dimethoxyphenyl)cyclohexyl esterAusbeute 20,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

9.5 mmol of (±)-acetic acid (1SR,3RS,4RS)-4-amino-3-(3,4-dimethoxyphenyl)cyclohexyl ester (compound B2) are dissolved in a mixture of 40 ml of methylene chloride and 10 ml of triethylamine and treated with 8.9 mmol of 3,4-dicyclopropylmethoxybenzoyl chloride. After stirring for 1 h at room temperature, the reaction mixture is concentrated and the residue chromatographed on silica gel using a mixture of petroleum ether/ethyl acetate/triethylamine in the ratio 4/4/1 as eluent. After concentration of the corresponding eluate fractions, 1.86 mmol of the title compound are obtained.

Aufarbeitung

  1. concentrationthe reaction mixture is concentrated
  2. customthe residue chromatographed on silica gel using
  3. additiona mixture of petroleum ether/ethyl acetate/triethylamine in the ratio 4/4/1 as eluent

Quellen und Nachweise

ORD-Eintrag
ord-bb5e5f9ea25a47e586b36e44e71c708b
Quelldatensatz
uspto-grants-2008_02
Patentnummer
US07329676B2

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