Warrant(s)

Warrant(s). Means (a) the Common Unit Purchase Warrant dated July 6, 2000 issued by the Company to The Bay City Capital Fund II, L.P. for the purchase of up to 2,181,016 Class One Common Units (which warrant was exercised in full on July 24, 2000); (b) the Common Unit Purchase Warrant dated December 18, 2001 issued by the Company to PharmBay Investors, L.L.C. for the purchase of up to 416,667 Class One Common Units; (c) the Common Unit Purchase Warrant dated December 18, 2001 issued by the Company to The... Bay City Capital Fund III, L.P. for the purchase of up to 399,209 Class One Common Units; and/or (d) the Common Unit Purchase Warrant dated December 18, 2001 issued by the Company to Bay City Capital Fund III Coinvestment Fund, L.P. for the purchase of up to 17,458 Class One Common Units. View More

Warrant(s). Mean the Warrants issued or issuable pursuant to the Purchase Agreement.

Warrant(s). Mean the 7,750,000 Warrants to purchase 7,750,000 shares of Common Stock issued by the Company to the Investor in a private placement pursuant to Subscription Agreement dated as of , 2008 between the Company and the Investor.

Warrant(s). Shall mean (i) that certain Warrant to Purchase Stock issued by the Company to Comerica, with an Issue Date (as defined therein) as of December 23, 2004, (ii) that certain Warrant to Purchase Shares of Series A2 Preferred Stock issued by the Company to GATX Ventures, Inc., with a Date of Grant (as defined therein) as of March 28, 2003 and (iii) the Series C Warrants.

Warrant(s). Means those certain warrants to purchase shares of Common Stock issued in connection with the Company's bridge financing transactions pursuant to agreements dated February, March and December 2004.

Warrant(s). Shall mean warrants to purchase Common Shares issued pursuant to the Purchase Agreement.

Warrant(s). Shall have the meaning assigned to it in the introduction to this Warrant. 7

Warrant(s). Means the Common Stock purchase warrants in the form of Exhibit C hereto, as may be amended from time to time, issued or issuable to the Investors at the Closing.

Warrant(s). Means those common stock warrants which, in connection with Evans, from time to time, making certain investments in Challenger and/or providing financing to Challenger, Challenger has, at various times, issued to Evans to purchase shares of Challenger's common stock, par value $0.001 per share, at various exercise prices and with various expiration dates, but only insofar as the warrants were issued pursuant to or in conjunction with, any of the Debentures.

Warrant(s). Means collectively, the Amphora Warrants and the New Warrants.