You should know what the first does...it is an oxidizing agent and apparently it has oxidized two localities according to the product formula.
The second agent HIO4 is often used to oxidized diols, specifically alpha diols, cleave the carbon bond between the diol and oxidize each of these counterparts to the carboxylic acid.
CH2N2, is frequently used to create methyl esters from carboxlic acids...
I'll attempt the problem myself in detail later if I have the time.