Top 50 selling drugs

Here is the list of top 50 drugs sold.. Eventually all the drugs and the need will be updated here.. pl. revisit the site and add comments what you want to see especially science behind these miracle and life saving drugs.

Taxol Structure ?

From web Link:
http://www.chemexper.com/chemicals/supplier/cas/33069-62-4.html

S-Isoserine [2aR-[2aa,4b,4ab,6a,9a(aR,bS),11a,12a,12aa,12ba]]-b-(Benzoylamino)-a-hydroxy-6,12b-bis(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl



Name from 'commercial source':

Benzenepropanoic acid, b-(benzoylamino)-a-hydroxy-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-bis(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester, (aR,bS)-