Sg. Fattakhov et al., Mannich reaction as a convenient route to new macrocyclic compounds containing an uracil fragment, RUSS J G CH, 71(3), 2001, pp. 469-470
Mannich reaction of 1,3-bis[4-(2-mercaptomethylphenoxy)butyl]-6-methyl-1,2,
3,4-tetrahydropyrimidine-2,4-dione, formaldehyde, and N-benzylamine afforde
d a 24-membered macrocyclic compound containing an uracil fragment, 1,3-(11
-benzyl-6,7:15,16-dibenzo-5,17-dioxa-9,13-dithia-11-aza-6,15-heneicosadiene
-1,21-diyl)-6-methyl-1,2,3,4-tetrahydropyrimidine-2,4-dione.