Reaktionsgleichung
[CH2:1]([O:3][C:4](=[O:18])[CH:5]([O:15][CH2:16][CH3:17])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][C:8]=1[CH3:14])[CH3:2].[CH3:19][C:20]1[N:21]=[C:22]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[S:23][C:24]=1[CH2:25][CH2:26]O.CC1N=C(C2C=CC=CC=2)SC=1CO.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)(C)C)=O)=NC(OC(C)(C)C)=O>>[CH2:1]([O:3][C:4](=[O:18])[CH:5]([O:15][CH2:16][CH3:17])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:26][CH2:25][C:24]2[S:23][C:22]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)=[N:21][C:20]=2[CH3:19])=[CH:9][C:8]=1[CH3:14])[CH3:2]Komponenten
6
Edukt 5
Produkt 1
Versuchsvorschrift
In analogy to the procedure described in example 10 c], [rac]-2-ethoxy-3-(4-hydroxy-2-methyl-phenyl)-propionic acid ethyl ester (example 10 b]) was reacted with 2-(4-methyl-2-phenyl-thiazol-5-yl)-ethanol (prepared from (4-methyl-2-phenyl-thiazol-5-yl)-methanol [PCT Int. Appl. (2002), WO 02/80899 A1] according to the reaction sequence described in example 104 a] to c]) in the presence of triphenylphosphine and di-tert-butyl azodicarboxylate to yield [rac]-2-ethoxy-3-{2-methyl-4-[2-(4-methyl-2-phenyl-thiazol-5-yl)-ethoxy]-phenyl}-propionic acid ethyl ester as colorless liquid.
Quellen und Nachweise
- ORD-Eintrag
- ord-e4bd93030e344813a8cb325385eb028d
- Quelldatensatz
- uspto-grants-2004_10
- Patentnummer
- US06809110B2
Verknüpfte Notizen
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