STUDIES DIRECTED TOWARD SYNTHESIS OF GUANOSINE 8,5'-IMINO CYCLONUCLEOSIDES AND DERIVATIVES-I

Article abstract of DOI:10.1016/0040-4020(80)88046-X

8,5'-Aminimino bridging in the guanosine series using 5'-O-tosyl (1) and 5'-O-mesyl derivatives (2) of 2',3'-O-isopropylidene-8-bromoguanosine (5) and hydrazine gave N³,5'-cyclized product 3 and the N⁵,5'-cyclonucleoside of 4-carboxy