Adverb
enantiomerically (comparative more enantiomerically, superlative most enantiomerically)
In the manner of an enantiomer
Aldrichimica Acta Volume 30 No 4 (pdf) from Sigma-Aldrich
Enantiomerically pure cyclopropanes are very useful chiral building blocks since they may be converted to a variety of acyclic and cyclic products through stereochemically well-defined ring-opening reactions or rearrangements.