Why did the high priests try Jesus on charges of Blasphemy if He fulfilled their prophecy? Why did the Jewish high priests deny Jesus if He was fulfilling their scriptures? 

It seems as if they viewed Him as nothing to do with their God.

What are some reasons from the perspective of the high priests that they refused to accept Jesus?
The Jewish priests expected the Messiah to come in like a Lion with great fanfare and overwhelming military might for subduing the enemies of Israel.  They did not expect the Messiah to be born in humble circumstances or to grow up as a common craftsman.

Jesus threatened the authority and the lifestyle that the priests had grown accustomed to, as they grew very rich while helping the Roman authorities to maintain control over Israelite-controlles towns.  Several times in the Gospels (Mat 23:1-4, Luke 11:37-44), Jesus directly rebukes the priests on multiple issues. 


  ... the crowds were amazed at his teaching, because he taught as one who had authority, and not as their teachers of the law. Matthew 7:28-29


Many people were putting their trust in the teachings of Jesus instead of the priests.

It must have been difficult for the Jewish Priests to consider that the promised Messiah would come as a threat to themselves, God's representatives to His own people. They viewed him as being opposed to the established authority that controlled the Temple and the People, which would likely seem contrary to what they might expect from the long-awaited Messiah.