Our stereodivergent synthesis of the ester-linked dimers commenced from (-)-myrtenol (12) as a common starting material. An initial Steglich esterification 50 of 12 with pinonic acid (3) gave ester 13 in 87% yield. The methyl ketone within 13 was converted to its enol silane, and the resultant unpurified compound was exposed to ozonolysis conditions to generate a separable mixture of acid-aldehyde 14 and keto-aldehyde 15 in 42% and 33% yield, respectively.