Total Synthesis of S (+)-Curcuphenol, S (+)-Curcuquinone and S (+)-Curcuhydroquinone

Total Synthesis of S-(+)-Argentilactone

M uham m ad Saeed3, M uham m ad A bbas3, Khalid M oham m ad K hanb, and Wolfgang V oelter3 a Abteilung für Physikalische Biochemie, Physiologisch-chemisches Institut der Universität Tübingen, Hoppe-Seyler-Straße-4, D-72076 Tübingen, Germany b International Center for Chemical Sciences, H. E. J. Research Institute of Chemistry, University of Karachi, Karachi-75276, Pakistan Reprint request to Pr...

Total synthesis of (S)-14-azacamptothecin.

A concise synthesis of (S)-14-azacamptothecin has been accomplished in 8 steps from commercially available (R)-2-hydroxybutanoic acid. The key strategy involved in this synthesis is the Michael addition/β-elimination sequence to construct the chiral quaternary carbon center, followed by palladium catalyzed cyanation and formal [4 + 2] cycloaddition/elimination/aromatization in a one pot manner ...

A FACILE SYNTHESIS OF (S) – (-) – PROPRANOLOL

A one-pot synthesis of (S)-(-)-propranolol is reported. Zn(NO3)2/(+)-tartaric acid catalyzed enantioselective synthesis of (S)-(-)-propranolol via kinetic resolution of key intermediate ?-naphthyl glycidyl ether with high optical and chemical yield.

Total Synthesis of ( 3 S , 5 R , 3 ’ S , 5 ’ R ) - Capsorubin

Carotenoid compounds are widely distributed among plants, animals and certain bacteria, and they are employed as natural pigments for foodstuffs. It is well-known that certain carotenoids have important biochemical and biological functions, as well as nutritional importance as vitamin A precursors. The use of carotenoids as chemoprevention agents against certain types of cancer has been reporte...

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