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Helvetica Chimica Acta, Volume 79, Issue 6, pages 1620–1626, 18 September 1996
Antiplatelet α-Methylidene-γ-butyrolactones: Synthesis and evaluation of quinoline, flavone, and xanthone derivatives
Tai-Chi Wang, Yeh-Long Chen, Cherng-Chyi Tzeng, Shorong-Shii Liou, Ya-Ling Chang, Che-Ming Teng
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http://dx.doi.org/10.1002/hlca.19960790612