Chemist who worked on purine analogues at the Wellcome Research Laboratories
Gertrude B. Elion
Wellcome Research Laboratories, Burroughs Wellcome Co.
Author of the 1988 Nobel lecture 'The purine path to chemotherapy', in which she describes joining the Wellcome Research Laboratories in 1944 and being assigned to work on purines, and the discovery of 6-mercaptopurine and 6-thioguanine from a screen of purine analogues.
Sources
Elion GB. The purine path to chemotherapy. Nobel Lecture, 8 December 1988. NobelPrize.org (lecture text, 22 pages).