The invention provides lipophilic phosphonoacid/nucleoside conjugates that exhibit exceptional antiviral activity, including activity against drug-resistant HIV strains. Compounds of the invention include phosphonoacid/nucleoside conjugates where the carboxyl group and phosphonyl groups of the phosphonacid are esterified whereby the compound contains at least one lipophilic group and at least one nucleoside group.
Use in cosmetics of lipophilic derivatives of amino deoxyalditols,
申请人:L'Oreal
公开号:US05616746A1
公开(公告)日:1997-04-01
The invention is characterized by the use in cosmetic compositions of one or more lipophilic derivatives of amino deoxyalditols corresponding to the general formula: ##STR1## in which: R.sup.1 is a saturated linear C.sub.14 -C.sub.40 aliphatic radical; R.sup.2 is a hydrogen atom or a linear C.sub.1 -C.sub.6 alkyl radical; X is an oxygen atom or a methylene radical; and n is an integer from 1 to 5; with the proviso that when X is a methylene radical R.sup.1 contains from 19 to 39 carbon atoms. Application to the preparation of cosmetic compositions for the treatment of keratinous substances and for buccodental hygiene.
A N.sup.4 -alkoxycarbonylarabinofuranosylcytosine represented by the formula: ##STR1## wherein R is an aliphatic hydrocarbon group having 4 to 22 carbon atoms. These compounds are useful as anti-tumor agents.