Nakao Y, Matsunaga S, Fusetani N
Laboratory of Marine Biochemistry, Faculty of Agriculture, University of Tokyo, Japan.
Bioorg Med Chem. 1995 Aug;3(8):1115-22. doi: 10.1016/0968-0896(95)00106-q.
Three new thrombin and trypsin inhibitors, cyclotheonamides C (3), D (4), and E (8) were isolated from the marine sponge Theonella swinhoei. Their structures were determined by spectral and chemical methods.