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A correction was published on 15 January 2009, see Molecules 2009, 14(1), 412-413.

Molecules 2008, 13(12), 3033-3039; doi:10.3390/molecules13123033
Article

A New Cytotoxic Pregnanone from Calotropis gigantea

1,* , 1
,
2
,
2
 and
1,2,*
Received: 25 September 2008 / Revised: 26 November 2008 / Accepted: 3 December 2008 / Published: 4 December 2008
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Abstract

A new pregnanone, named calotropone (1), was isolated from the EtOH extract of the roots of Calotropis gigantea L. together with a known cardiac glycoside. The structures were elucidated by a study of their physical and spectral data. Compounds 1 and 2 displayed inhibitory effects towards chronic myelogenous leukemia K562 and human gastric cancer SGC-7901 cell lines.
Keywords: Calotropis gigantea L.; Calotropone; Cytotoxicity Calotropis gigantea L.; Calotropone; Cytotoxicity
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Wang, Z.-N.; Wang, M.-Y.; Mei, W.-L.; Han, Z.; Dai, H.-F. A New Cytotoxic Pregnanone from Calotropis gigantea. Molecules 2008, 13, 3033-3039.

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