Exhibit 31.3
Certification of Chief Executive Officer
I, Daniel N. Swisher, Jr., certify that:
1. | I have reviewed this Amendment No. 1 to Quarterly Report on Form 10-Q/A of Sunesis Pharmaceuticals, Inc.; and |
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: June 30, 2011 | /s/ Daniel N. Swisher, Jr. | |
Daniel N. Swisher, Jr. President and Chief Executive Officer |