CATALYST PHARMACEUTICAL PARTNERS, INC. 3,046,740 shares of Common Stock and Warrants to purchase up to 1,523,370 shares of Common Stock UNDERWRITING AGREEMENTCatalyst Pharmaceutical Partners, Inc. • October 28th, 2011 • Pharmaceutical preparations • California
Catalyst Pharmaceutical Partners, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions stated herein, to issue and sell to Roth Capital Partners, LLC (the “Underwriter”) an aggregate of 3,046,740 authorized but unissued shares (the “Shares”) of Common Stock, par value $0.001 per share (the “Common Stock”), of the Company and (ii) warrants (the “Warrants”) to purchase up to 1,523,370 shares of Common Stock (the “Warrant Shares”). The form of the Warrant is attached hereto as Exhibit A. The Shares, the Warrants and the Warrant Shares are collectively referred to as the “Securities.”
