Task: Translation
Input (Czech): Deriv t 4-merkaptobenzoylguanidinu, substituovan² v orto-poloze obecn ho vzorce I, kde znamen  R.sup.1.n. A, CF.sub.3.n., CH.sub.2.n.F, CHF.sub.2.n., C.sub.2.n.F.sub.5.n., R.sup.2.n. H, A, C.sub.3.n.-.sub.7.n.cykloalkyl, Ph nebo Het, Het monocyklickou aromatickou heterocyklickou skupinu s jedn m atomem N, A C.sub.1-6.n.alkyl, Hal F, Cl, Br nebo I, Ph fenyl pop° pad  substituovan² jedn m, dv ma nebo t°emi substituenty ze souboru zahrnuj c ho A, OA, NH.sub.2.n., NHA, NA.sub.2.n., F, Cl, Br a CF.sub.3.n., a jeho farmaceuticky p°ijateln  soli maj  antiarytmick  vlastnosti a p sob  jako inhibitor celul rn ho Na.sup.+.n./H.sup.+.n. antiporteru.\
Output (English): 4-mercaptobenzoylguanidine derivative, substituted in the ortho-position of formula (I), where R.sup.1 is n. A, CF.sub.3, CH.sub.2F, CHF.sub.2, C.sub.2F.sub.2, R.sup.2. H, A, C.sub.3., Sub. Hal F, Cl, Br or I, Ph phenyl substituted with one, two or three substituents from the group consisting of A, OA, NH 2, NHA, NA.sub.2 F, Cl, Br and CF3, and pharmaceutically acceptable salts thereof, have antiarrhythmic properties and are useful as cellulose inhibitors. .n. antiporter.