1955 年 75 巻 7 号 p. 869-873
Examination of various properties of kainic acid and its derivatives, and their infrared absorption spectra produced conclusive evidence that 2-carboxy-3-carboxymethyl-4-isopropenylpyrrolidine, the structure determined by the Takeda Research Laboratory and privately shown to the present writers, would be the most appropriate structure for kainic acid and that it enabled explanation of various reactions listed in Table II.