(2S-(2alpha,3beta,4beta))-3-Ethenyl-2-(beta-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-acetic acid 2H-Pyran-4-acetic acid, 3-ethenyl-2-(beta-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-, (2S-(2alpha,3beta,4beta))- 58822-47-2 Secoxyloganin