(4,5) Because 2 isolated from the insect was levorotatory
, its absolute configuration was unambiguously assigned as R.
isomer is the more active releaser of nor-epinephrine and dopamine in the central nervous system, and currently levopropylhexedrine is in fact synthesized from dextromethamphetamine (Wilson et al.
(4) Familiarity and use of liothyronine (the exogenous levorotatory
form of T3) augmentation may improve response rates for depressed patients taking antidepressants.
(154) Once separated, it was determined that the dextrorotatory enantiomer imparted all of the beneficial antiplatelet activity, while the levorotatory
enantiomer imparted all of the neurotoxicity of the racemate.
In addition, enantiomers can be categorised by their ability to rotate polarised light in a clockwise or counterclockwise manner--designated as '+' (also known as dextrorotatory) or '-'(levorotatory
Bupivacaine or its levorotatory
isomer levobupivacaine, were the local analgesic (LA) agents used in all five cases.
Levosimendan, the levorotatory
form, was shown to exert a positive inotropic effect in isolated cardiac preparations (41), with greater potency than the dextrorotatory isomer, dextrosimendan (42).