HPV inhibitors of formula (I) in which G1 is -NHCO(CH2)n-, where n is an integer between 1 and 4, R3 is -CW(CH2)m-NR4R5 or -CW(CH2)mCH3 or -CN, where W is O, S or NH and m is an integer between 0 and 5, or R3 is one of the following groups: and A is an optionally substituted aryl group and B is an aryl group, preferably a phenyl which is substituted.