"

I got the confusion ..... When I imported the IUPAC name of tramadol without R/S nomenclature and drawed the wegde and dash notation ... the draw was rotated 

so the R/S nomenclature switched 

while the original draw of Tramadol gives me your nomenclature &  

but I have a QUESTION what if the original Tramadol structure was that rotated one ?? then the nomenclature theory would be just a scratch !!"