trovafloxacin contains two mirror symmetric bicyclic system which can be so arranged that both planes of symmetry coincide. the compound is therefore achiral. the saturated ring system contains three stereogenic centres. the absolute configuration at the two chirality centres c1 and c5 of the bicyclic ring system can be determined by application of the CIP rules. the R-configured carbon atom is c1 since it takes precedence over the S-configured centre, which is hence c5. a pseudo chirality centre is present at c6, which is the reason for the existence of two achiral diastereomers. the amino group has highest priority, followed by the R-configured branch and then by the S-configured branch. the pseudo chirality centre is therefore s-configured.
сама то вроде бы понимаю и перевила, но так коряво, стыдно вставлять в диплом
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