But when drug discovery is a 4-6 year endeavor, knowing your site-of-action better and starting from a well-characterized template is worth its weight in gold.

But when drug discovery is a 4-6 year endeavor, knowing your site-of-action better and starting from a well-characterized template is worth its weight in gold. Edit: I realize this might not be clear, but drug discovery is a separate paradigm from drug development. So, together they take around 10-13 years.