1,5,9-epi-Deoxyloganic acid 22487-36-1 Cyclopenta(c)pyran-4-carboxylic acid, 1-(beta-D-glucopyranosyloxy)-1,4a,5,6,7,7a-hexahydro-7-methyl-, (1S-(1alpha,4aalpha,7alpha,7aalpha))-