. 2010 Mar 23;15(3):2028–2038. doi: 10.3390/molecules15032028
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licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Scheme 4.
Synthesis of compounds 40000-4 and 6.