Sodium ethoxide → 3-Butyl-8-chloro-1-[3-(3-{[3-(ethyloxy)-4-hydroxyphenyl]methyl}-1,2,4-oxadiazol-5-yl)propyl]-3,7-dihydro-1H-purine-2,6-dione

Participants

Reaction Conditions

Reaction Steps

Ethyl 4-(3-butyl-8-chloro-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)butanoate (53 mg, 0.15 mmol) and (1Z)-2-[3-(ethyloxy)-4-hydroxyphenyl]-N-hydroxyethanimidamide (35 mg, 0.165 mmol; entry 11, Table 7) were mixed in EtOH (0.75 ml). Ethanolic sodium ethoxide (21% by wt., 0.083 ml, 0.22 mmol) was added and the mixture was heated in the microwave at 140° C. for 10 min. A further 0.055 ml (0.15 mmol) of NaOEt solution was then added and the mixture heated for a further 10 min period at 140° C. The mixture was partitioned between EtOAc and 2M HCl and the organic phase evaporated and purified by MDAP to give the title compound as a solid (29.6 mg).

Provenance & Evidence