1: CH(CH2CH=CH2)(CO2Me)2 With sodium hydride in tetrahydrofuran; mineral oil T=0 - 20°C; Inert atmosphere; 2: propargyl bromide in tetrahydrofuran; mineral oil Inert atmosphere;
1: 6-methyl-4-thioxo-3,4-dihydropyrimidin-2(1H)-one With sodium methylate in methanol Metallation; 2: propargyl bromide in toluene T=20°C; Alkylation; 4 h;
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