Company Filing History:
5 out of 3,840 
4 out of 1,200 
Years Active: 1990-1995
Title: The Innovative Contributions of Stephen J Pegg
Introduction
Stephen J Pegg is a notable inventor based in MacClesfield, GB. He has made significant contributions to the field of pharmaceuticals, particularly in the development of anti-tumor agents. With a total of 5 patents to his name, Pegg's work has had a meaningful impact on cancer treatment.
Latest Patents
Pegg's latest patents include innovations related to 6-substituted quinazolines that exhibit anti-tumor activity. The invention focuses on quinazoline derivatives, or pharmaceutically-acceptable salts thereof, which possess anti-tumor properties. The processes for their manufacture and the pharmaceutical compositions containing them are also detailed in his patents. The invention provides a quinazoline of the formula: ##STR1## wherein R.sup.1 is hydrogen or amino, or alkyl or alkoxy each of up to 6 carbon atoms; or R.sup.1 is substituted alkyl or alkoxy each of up to 3 carbon atoms.
Career Highlights
Throughout his career, Stephen J Pegg has worked with prominent organizations such as Imperial Chemical Industries Limited and the National Research Development Corporation. His experience in these companies has contributed to his expertise in pharmaceutical innovations.
Collaborations
Pegg has collaborated with notable coworkers, including Leslie R Hughes and John Oldfield, which has further enriched his professional journey.
Conclusion
Stephen J Pegg's contributions to the field of pharmaceuticals, particularly in anti-tumor agents, highlight his innovative spirit and dedication to improving cancer treatment. His work continues to inspire future advancements in the industry.