AMENDMENT NO. 1 TO SERIES B PREFERRED STOCK PURCHASE AGREEMENT AND SERIES C PREFERRED STOCK PURCHASE AGREEMENT Amendment No. 1 made this 8th day of August, 1997, by and among Scriptgen Pharmaceuticals, Inc., a Delaware corporation (the "Corporation")...Series B and C Preferred Stock Purchase Agreement • January 8th, 1998 • Scriptgen Pharmaceuticals Inc • Pharmaceutical preparations
