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Figure 2
Superposition of pyrrolizidine ring system of (I)[link] (magenta) with the similar reported pyrrolizidine ring system structures in (II) (yellow; Selvanayagam et al., 2010BB10), (III) (green; Usha et al., 2005BB18) and (IV) (red; Seshadri et al., 2003BB11).

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COMMUNICATIONS
ISSN: 2056-9890
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