[Structure-activity relationship of a new family of calcium antagonist molecules derived from monosaccharides].
The Ca++ antagonist effects of new drugs derived from monosaccharides were tested in the rat duodenal muscle preparation in vitro. The structure-activity relationship shows that: 1. The monoacetonide products (nR-O-MAG and nR-S-MAG) with alkyl chain from 8 to 9 C atoms induce a maximal reduction of muscular tonus and contraction. 2. The inhibitory effect rapidly decreases when the alkyl chain has a number of C atoms smaller than 7 or larger than 9. 3. The diacetonide (DAG) and acetonide (G) products induce an inhibition of less extent. 4. The Ca++ antagonist effect is very slightly changed by the type of heteroatom (O or S) linking the alkyl chain to the monosaccharide. 5. The type of monosaccharide affects the Ca++ antagonist activity.
Squalli
J
J
Laboratoire de Neurobiologie Cellulaire, UFR des Sciences, Université de Picardie.
Brule
G
G
Czternasty
G
G
Marlot
D
D
Ronco
G
G
Villa
P
P
D000818:Animals; D002121:Calcium Channel Blockers / Q000737:chemistry* / Q000494:pharmacology*; D008297:Male; D015394:Molecular Structure; D009005:Monosaccharides / Q000737:chemistry*; D009130:Muscle, Smooth / Q000187:drug effects*; D051381:Rats; D017208:Rats, Wistar; D013329:Structure-Activity Relationship
D002121:Calcium Channel Blockers; D009005:Monosaccharides