(5R,6S,9S)-3-(2,4-Difluoro-benzoyloxy)-6-[(E)-3-(2,2-dimethyl-propionyloxy)-propenyl]-4-methoxy-9-methyl-2-oxo-1-oxa-spiro[4.5]deca-3,7-diene-8-carboxylic acid methyl ester
2,4-Difluoro-benzoic acid (5R,6S,9S)-6-[(E)-3-(2,2-dimethyl-propionyloxy)-propenyl]-4-methoxy-8-methoxymethoxymethyl-9-methyl-2-oxo-1-oxa-spiro[4.5]deca-3,7-dien-3-yl ester
(5R,6S,9S)-3-(2,4-Difluoro-benzoyloxy)-6-[(E)-3-(2,2-dimethyl-propionyloxy)-propenyl]-4-methoxy-9-methyl-2-oxo-1-oxa-spiro[4.5]deca-3,7-diene-8-carboxylic acid
2,4-Difluoro-benzoic acid (5R,6S,9S)-6-[(E)-3-(2,2-dimethyl-propionyloxy)-propenyl]-8-hydroxymethyl-4-methoxy-9-methyl-2-oxo-1-oxa-spiro[4.5]deca-3,7-dien-3-yl ester
2,4-Difluoro-benzoic acid (5R,6S,9S)-6-[(E)-3-(2,2-dimethyl-propionyloxy)-propenyl]-8-formyl-4-methoxy-9-methyl-2-oxo-1-oxa-spiro[4.5]deca-3,7-dien-3-yl ester