WOBURN, Mass.--(BUSINESS WIRE)--Dec. 6, 2005--ArQule, Inc. (Nasdaq: ARQL) today updated its previously announced plans to exit its Chemical Technologies business, as originally communicated in a press release on September 27, 2005. Pursuant to the Company’s agreement with Pfizer dating from December, 2001 and amended in January, 2004, ArQule will continue to provide chemistry services to Pfizer until May 22, 2006.