Significados de position 4 en inglés

The introduction of a fluorine in position 4 of the xanthene ring improved BACE1 potency (5-10-fold).

Compared to the previous series, the presence of an aryl moiety at position 4 afforded an average 10-fold increase in potency.

Concurrent modifications of positions 4 and 8 do not give rise to potent antagonists with reduced partial agonist activity.

To this end, we have synthesized membrane spanning 23-mer containing a single tyrosyl residue at positions 4, 8, and 12.

The position , in the French order, of the ships taken in the battle, is shown by the crosses in Positions 4, 5, 6.