title: N -carbamoyl-2-O-methyltyrosine-oxytocin and 1-6   deamino cystathionine-2-O-methyltyrosine oxytocin: two antagonists of oxytocin on amphibian epithelial cell receptors.
mesh_terms: D000818:Animals; D001001:Anura; D004305:Dose-Response Relationship, Drug; D004847:Epithelial Cells; D004848:Epithelium / Q000187:drug effects; D008781:Methyltyrosines / Q000494:pharmacology*; D010121:Oxytocin / Q000037:antagonists & inhibitors*; D011893:Rana esculenta; D011955:Receptors, Drug; D012867:Skin / Q000187:drug effects; D013329:Structure-Activity Relationship; D013806:Theophylline / Q000494:pharmacology; D001743:Urinary Bladder / Q000187:drug effects
chemical_list: D008781:Methyltyrosines; D011955:Receptors, Drug; D010121:Oxytocin; D013806:Theophylline