ST. LOUIS--(BUSINESS WIRE)--Tripos, Inc. (NASDAQ:TRPS), announced today that on April 18, 2007, it received a letter from the Nasdaq Listing Qualifications Department advising the Company that for the year ended Dec. 31, 2006, Tripos did not comply with the minimum $10 million stockholders’ equity requirement for continued inclusion on the NASDAQ Global Market under Marketplace Rule 4450(a)(3).