| abstract |
The invention relates to hypophosphorous acid derivatives of formula (I) wherein —X is H or OH, —R represents one or several radicals R 1 -R 5 , identical or different, two of R 1 -R 5 optionally occupying the same position on the phenyl group, one to four of R 1 -R 5 being H and the others being selected in the group comprising -0-(CH 2 ) n —COOH; —S—(CH 2 ) n —COOH; —NH—(CH 2 ) n —COOH; -0-(CH,R′)—COOH; —O—(CH 2 ) n —OH; OR′, —R′ being a C 1 -C 3 alkyl radical; —OH; —COOH; halogen, particularly —F, —CI, —Br, —I, —CF 3 ; —OCF 3 ; —N0 2 ; —CH═CH—COOH; —(CH 2 ) n —COOH; O—(CH 2 ) n —P0 3 H 2 ; O—(CF 2 ) n —P0 3 H 2 ; O—(CH 2 ) n —S0 3 H; O—(CH 2 ) n —CONHOH; O—(CH 2 ) n -tetrazol; O—(CH 2 ) n -hydroxyisoxazol—n=1 to 5, preferably 1-3; said hypophosrous acid derivatives being diastereoisomers or enantiomers. |