In this presentation I will report on the search for the heavy boson H decaying to a pair of 125GeV SM-like Higgs bosons h using the final state of two τ leptons and two b-jets and the search for a heavy boson A decaying to a SM-like Higgs boson h and a Z boson using the final state of two τ leptons and two leptons ll (ee or μμ). The mass range considered in the analysis extends from mA/H l 250GeV up to mA/H l 350GeV. The analysis is performed on a dataset corresponding to an integrated luminosity of L = 19 .7fb−1 proton-proton collision data collected in 2012 by the CMS experiment at √s = 8TeV