Exhibit 31.1
 
CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER
 
I, Jeffrey Meckler, certify that:
 
1.           I have reviewed this annual report on Form 10-K/A of Cocrystal Pharma, Inc.;  
 
2.           Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
 
Date: April 30, 2015
 
/s/ Jeffrey Meckler
Jeffrey Meckler
Chief Executive Officer
(Principal Executive Officer)