He also synthesized lanosterol, the famous poison strychnine and reserpine. Several other examples from the chemistry of the alkaloids are lysergic acid, ergonovine, ellipticine, colhicine. In the field of antibiotics Woodward established the structure of aureomycin and terramycin. He has also synthesized chlorophyll, the green plant pigment. He established the structure of many compounds, for instance the peculiar fish poison tetrodotoxin, causing numerous fatalities in Japan. He was awarded the Nobel Prize for Chemistry in 1965.
Chlorophyll is the green pigment responsible for photosynthesis in plants. This molecule consists of 55 carbon atoms linked with 72 hydrogen atoms, 5 atoms of oxygen and 1 atom of magnesium. The research was performed at the Converse Memorial Laboratory of Harvard University, Cambridge, Mass.
According to wikipedia