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entific and Industrial Research India (CSIR), NewDelhi. M. S. R. than ks U GC, New Delhi, for the awar dof Senior Research Fellowship. This work was supportedby the Deutsche Forschungsgemeinschaft (Du 98/12)and the Hungarian Academy of Sciences (project no. 89),Hungarian National Research Foundation (OTKA no.T 026264), and by the Fonds der Chemischen Industrie.

R e f e re n c e s a n d N o t e s

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(2) Bruker AVANCE sta ndard software.(3) Agrawal, P. K. Carbon-13 N MR of Flavonoids, Elsevier Sci-

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