A Cyclopeptide and a Tetrahydroisoquinoline Alkaloid from Ophiorrhiza nutans

Tadayoshi Onozawa1, Mariko Kitajima1, Noriyuki Kogure1

  • 1Department of Biofunctional Molecular Chemistry, Graduate School of Pharmaceutical Sciences, Chiba University , 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.

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