Four New Isovalertatins M33, D13, D33, and D43, from the Culture Filtrate of Streptomyces luteogriseus

• Duan Yun SI ^1, ,
• Da Fang ZHONG ^2, ,
• Chang Xiao LIU ^1,

• 1.

  Tianjin State Key Laboratory of Pharmacokinetics and Pharmacodynamics, Tianjin Institute of Pharmaceutical Research, Tianjin 300193;

• 2.

  Center for Drug Metabolism, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203

• Received Date: 22 August 2005
  
• Fund Project:

  We thank Prof. Q. Xu, Hebei University of Science and Technology, for offering the sample, WC670. This project was financially supported by China National High Technology Plan (863 Plan No. 2003AA2Z374D).