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Original Articles

Cytotoxic monacolin analogs from Monascus purpureus-fermented rice

, , , , , & show all
Pages 600-609 | Received 24 Jan 2013, Accepted 25 Mar 2013, Published online: 10 May 2013
 

Abstract

Two new monacolin analogs, monacolins O (1) and P (2), along with three known analogs, have been isolated from the ethanolic extract of Monascus purpureus-fermented rice. Their structures and absolute configurations were elucidated by spectroscopic methods, especially 2D NMR and CD spectral analyses as well as chemical method. Both 1 and 2 were tested against five tumor cell lines, and compound 1 exhibited selective cytotoxic activity against A2780 and A549 cell lines, with IC50 values of 3.7 and 8.0 μM, respectively.

Acknowledgements

We gratefully acknowledge financial support from the National Natural Science Foundation (Grant No. 31171669); the Beijing Natural Sciences Foundation (Grant No. 7102020); and Scientific Research Common Program of Beijing Municipal Commission of Education (Grant No. KM201111417001).

Notes

1. These authors contributed equally to this work.

1. These authors contributed equally to this work.

Additional information

Notes on contributors

Ming-Tao Liu

1 1. These authors contributed equally to this work.

A-Li Wang

1 1. These authors contributed equally to this work.

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