... -dimethylcyclopropanecarboxylate Comprises a mixture of four diastereoisomeric pairs of enantiomers I (R)-a-cyano-4-fluoro-3-phenoxybenzyl (1R)-cis-3-(2 ... )-a, (1S)-cis-; II (S)-a, (1R)-cis- + (R)-a, (1S)-cis-; III (R)-a, (1R)-trans- + (S)-a, (1S)-trans-; IV ... (S)-a, (1R)-trans- + (R)-a, (1S)-trans- .Chemical Abstracts name cyano(4-fluoro-3 ...