Complex sentence: Within a few years Eli Lilly and Company became a very successful business that was known for manufacturing high-quality prescription drugs, especially gelatin-and sugar-coated pills and capsules and fruit-flavored elixirs.
Split into simpler sentences: Within a few years Eli Lilly and Company became a very successful business. The company became known for manufacturing high-quality prescription drugs, especially gelatin-and sugar-coated pills and capsules and fruit-flavored elixirs.