Exhibit 4.1 STOCK PURCHASE AGREEMENT by and between ALPHA BETA TECHNOLOGY, INC.,Stock Purchase Agreement • November 25th, 1997 • Alpha Beta Technology Inc • Pharmaceutical preparations • New York
Exhibit 4.2 FIRST AMENDMENT TO SHAREHOLDER RIGHTS AGREEMENT ---------------------------- Amendment, dated as of November 13, 1997, to the Shareholder Rights Agreement, dated as of February 2, 1995 (the "Rights Agreement"), between Alpha- Beta...Shareholder Rights Agreement • November 25th, 1997 • Alpha Beta Technology Inc • Pharmaceutical preparations
