Methyl (1′S,2R,4′R,5′S,7′S,8′S,13′R,15′S,17′R,18′R)-18′-chloro-5,8′-dihydroxy-17′-methoxy-7,13′-dimethyl-5′-(3-methyl-2-buten-1-yl)-4-oxo-4H,15′H-spiro[1,3-benzodioxine-2,19′-[2,3,6]trioxahexacyclo[13 .3.1.0~1,11~.0~4,10~.0~5,7~.0~13,18~]nonadeca[9,11]diene]-15′-carboxylate

Methyl (1′S,2R,4′R,5′S,7′S,8′S,13′R,15′S,17′R,18′R)-18′-chloro-5,8′-dihydroxy-17′-methoxy-7,13′-dimethyl-5′-(3-methyl-2-buten-1-yl)-4-oxo-4H,15′H-spiro[1,3-benzodioxine-2,19′-[2,3,6]trioxahexacyclo[13 .3.1.0~1,11~.0~4,10~.0~5,7~.0~13,18~]nonadeca[9,11]diene]-15′-carboxylate

Chloropupukeanolide A