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Larger Image Figure 2. 1H-1H COSY (bold line) and main HMBC (arrow) correlations of 1 and 2 (a and b). Image published in: Lan WJ et al. (2014) Image downloaded from an Open Access article in PubMed Central. © 2014 by the authors; licensee MDPI, Basel, Switzerland Permanent Image Page Printer Friendly View ECB-IMG-180768 |