—— |
(4ar,7ac,4'R)-4'-ethyl-1,5'-dioxo-octahydro-spiro[cyclopenta[c]pyran-7,2'-furan]-4t-carboxylic acid |
109406-38-4 |
C14H18O6 |
282.293 |
—— |
(4aR,7R,4'R)-4'-ethyl-1,5'-dioxo-(4ar,7ac)-octahydro-spiro[cyclopenta[c]pyran-7,2'-furan]-4t-carboxylic acid methyl ester |
92699-39-3 |
C15H20O6 |
296.32 |
—— |
(3R,5R,6S)-3-ethyl-2-oxo-1-oxa-spiro[4.4]nonane-6r,7c-dicarboxylic acid-anhydride |
91497-85-7 |
C12H14O5 |
238.24 |
—— |
(4aR,7R,4'R)-4'-ethyl-5'-oxo-(4ar)-4,4a,5,6,3',4'-hexahydro-3H-spiro[cyclopenta[c]pyran-7,2'-furan]-4t-carboxylic acid methyl ester |
101499-75-6 |
C15H20O5 |
280.321 |