Ethyl cyanoacetate → 6-Amino-1-[(3-isopropylisoxazol-5-yl)methyl]-2-thioxo-2,3-dihydropyrimidin-4(1H)-one
Reaktionsgleichung
[CH:1]([C:4]1[CH:8]=[C:7]([CH2:9][NH:10][C:11]([NH2:13])=[S:12])[O:6][N:5]=1)([CH3:3])[CH3:2].[O-]CC.[Na+].[C:18]([CH2:20][C:21](OCC)=[O:22])#[N:19]>>[NH2:19][C:18]1[N:10]([CH2:9][C:7]2[O:6][N:5]=[C:4]([CH:1]([CH3:3])[CH3:2])[CH:8]=2)[C:11](=[S:12])[NH:13][C:21](=[O:22])[CH:20]=1Komponenten
4
Versuchsvorschrift
The title compound was prepared in accordance with the general method described in Example 12(b) by using 1-[(3-isopropylisoxazol-5-yl)methyl]thiourea (1.11 g, 5.55 mmol, obtained from Example 15(a)), sodium ethoxide (21% w/v, 5.4 mL, 16.7 mmol) and ethyl cyanoacetate (1.8 mL, 16.7 mmol) with the exception that the reaction time after completed addition was 2 h. This provided 0.20 g (14% yield) of the title compound.