Exhibit 4.5 ----------- SECURITIES PURCHASE AGREEMENT THIS SECURITIES PURCHASE AGREEMENT, dated as of the date of acceptance set forth below (this "Agreement"), is entered into by and between DYNAGEN, INC. a Delaware corporation, with headquarters...Securities Purchase Agreement • February 1st, 2001 • Dynagen Inc • In vitro & in vivo diagnostic substances • New York
EXHIBIT 4.7 ----------- REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT, dated as of November 29, 2000 (this "Agreement"), is made by and between DYNAGEN, INC. a Delaware corporation, with headquarters located at Suite 2700, 1000...Registration Rights Agreement • February 1st, 2001 • Dynagen Inc • In vitro & in vivo diagnostic substances • New York