Four New C19 Homolignans, Schiarisanrins A, B, and D and Cytotoxic Schiarisanrin C, from Schizandra arisanensis

  • J Org Chem. 1997 May 16;62(10):3242-3245. doi: 10.1021/jo9622542.
Yao-Haur Kuo  1 ,  Li-Ming Yang Kuo ,  Chieh-Fu Chen
Affiliations
  • 1. National Research institute of Chinese Medicine 155-1, Sec. 2, Li-Nong St., Shih- Pai, Taipei 112, Taiwan, Republic of China.
PMID: 11671710 DOI: 10.1021/jo9622542
Abstract

Four new C(19) homolignans with a 5,4'-butano-2,4-cyclohexadienone-6-spiro-3'-(2',3'-dihydrobenzo[b]furan) skeleton, schiarisanrin A, schiarisanrin B, schiarisanrin D, and cytotoxic schiarisanrin C, were isolated from Schizandra arisanensis. Their structure and stereochemistry have been established by spectral and single-crystal X-ray analysis. Schiarisanrin C has cytotoxic activity with ED(50) values of 0.36, 7.1, 4.9, and 5.7 &mgr;g/mL, respectively, against KB epidermoid carcinoma of nasopharynx, COLO-205 colon carcinoma, HEPA hepatoma, and HELA cervix tumor cells.

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