Edward Doisy won a 1943 Nobel Prize for synthesizing this hemorrhage-inhibiting vitamin; isn't that "special"?
[DOC] [TLE] All Nobel Prizes in Physiology or Medicine - Nobelprize.org [PAR] "for their discovery of the mechanisms in the biological synthesis of ribonucleic 
acid and deoxyribonucleic acid" ... "for his discoveries relating to synthetic 
compounds that inhibit the action of ...