The invention is directed to compounds of formula (I) wherein R1 alkyl,
alkenyl or alkynyl having from 6 to 24 carbon atoms; n=0-12; X=oxygen or NH; and
the physiologically safe salts, esters, optically active forms, racemates and derivatives
thereof which can be metabolized in vivo to yield compounds of general formula
(I), methods of preparing same, and drugs containing said compounds, for treating
bone metabolic disorders.
