135445-75-9Relevant articles and documents
s-Triazolo(3,4-I)purine derivatives
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, (2008/06/13)
There are disclosed s-triazolo[3,4-i]purine derivatives represented by formula: STR1 wherein Y-Z represents STR2 R4 represents hydrogen, alkyl, substituted or unsubstituted aromatic heterocyclic group or substituted or unsubstituted aryl; and X2 represents oxygen, sulfur or NH; each of R1 and R2 independently represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; R3 represents alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl; X1 represents oxygen or sulfur; and represents a single bond or a double bond or pharmaceutically acceptable salts thereof.