Provided is a levodopa prodrug that overcomes the problems attributed to the blood kinetics of levodopa such as large number of doses and the incidence of side effects due to frequent dosing. (2S)-2-Amino-3-(3,4-bis((2-(benzoyloxy)-2-methylpropanoyl)oxy)phenyl)propanoic acid, a salt thereof, or a solvate thereof is a levodopa prodrug, and provides a flat blood concentration-time profile of levodopa through oral administration, and therefore is useful as a preventive and/or therapeutic agent for Parkinson's disease and/or Parkinson's syndrome that overcomes the problems associated with pharmaceutical preparations of levodopa.
Antineoplastic Agents. 571. Total Synthesis of Bacillistatin 2
作者:George R. Pettit、Shougang Hu、John C. Knight、Jean-Charles Chapuis
DOI:10.1021/np800607x
日期:2009.3.27
The first total synthesis of bacillistain 2 (2) has been achieved in 24 steps and 22.9% overall yield, providing a quite efficient route with maximal convergence. Notable features of this approach include two successful applications of the Mitsunobu reaction during respective assemblies of key intermediates 22 and 27, successful employment of 2-methyl-6-nitrobenzoic anhydride (MNBA) in the formation by lactonization of a macrocyclic (36-membered) ring, and very flexible access to structural modifications of the bacillistatin-type cyclodepsipeptides.
BEOBACHTUNGEN ÜBER DAS DREHUNGSVERMÖGEN DER d-MILCHSÄURE UND IHRER DERIVATE
作者:SHINOGU FUKUDA
DOI:10.1093/oxfordjournals.jbchem.a125712
日期:1938.3
METHOD FOR PRODUCING (1R, 2S)-1-AMINO-2-VINYL CYCLOPROPANE CARBOXYLIC ACID ESTER THAT HAS IMPROVED OPTICAL PURITY