RT - Article SR - Electronic T1 - SP - 2018-02-27 A1 - Khaliullin, F.A., A1 - Shabalina, Yu.V., A1 - Sharafutdinov, R.M., YR - 2015 UL - https://repo.bashgmu.ru/publication/671 AB - 1-Alkyl-8-bromo-3-methyl-7-(1,1-dioxo-1λ6-thietan-3-yl)-3,7-dihydro-1H-purine-2,6-diones reacted with amines to give the corresponding 1-alkyl-8-amino-3-methyl-7-(1,1-dioxo-1λ6-thietan-3-yl)-3,7-dihydro-1H-purine-2,6-diones which were treated with sodium alkoxide to remove thietanyl protecting group with formation of 1-alkyl-8-amino-3-methyl-3,7-dihydro-1H-purine-2,6-diones possessing no substituent on N7.