@article{19931730, title={Antisweet Natural Products. IX. Structures of Gymnemic Acids XV-XVIII from Gymnema sylvestre R. BR. V}, author={吉川 和子 and 近藤 由路 and 在原 重信 and 松浦 耕司}, journal={CHEMICAL & PHARMACEUTICAL BULLETIN}, volume={41}, number={10}, pages={1730-1732}, year={1993}, doi={10.1248/cpb.41.1730} }