Background Von HippeI-Lindau disease (VHL),a heritable autosomal dominant disease characterized by neoplasia in multiple organ systems,has rarely been reported
In the last few decades, pentazole derivatives have received a great deal of attention as they are important intermediates in the synthesis of all-nitrogen comp
Trifluoroacetic acid (TFA) is corrosive and toxic,which is hard to decompose by chemical reaction and micro-biological degradation[1 -2].However,TFA is largely