Triethylorthoaceate → 3-Isobutyl-8-methyl-2-thioxanthine

Participants

Reaction Conditions

Reaction Steps

A mixture of 5,6-diamino-1-isobutyl-2-thioxo-2,3-dihydro-1H-pyrimidin-4-one (Example 6 (c), 0.70 g, 3.26 mmol) and triethylorthoacetate (10 mL) was heated at 130° C. for 2 h and 40 minutes. Then the reaction mixture was cooled on an ice-bath, the solid filtered off and washed with ethanol (4×2 mL). The solid was dried in vacuo yielding the title compound (0.71 g, 95%).

Provenance & Evidence