Abstract
(+)-3-Oxocyclopentanecarboxylic acid was chemically correlated with (+)-3-carboxyadipic acid and with (+)-3-methylcyclopentanone, both of which are of known absolute configurations. This correlation established that the natural sarkomycin, (-)-2-methylene-3-oxocyclopentanecarboxylic acid, is represented by the formula (XXXII), of which C-1 is S.
