?url_ver=Z39.88-2004&rft_id=10.1021%2Fja9945313&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ribe%2C+S&rft.aulast=Ribe&rft.aufirst=S&rft.issue=19&rft.volume=122&rft.date=17+May+2000&rft.issn=0002-7863&rft.atitle=Optical+rotation+computation%2C+total+synthesis%2C+and+stereochemistry+assignment+of+the+marine+natural+product+pitiamide+A&rft.title=Journal+of+the+American+Chemical+Society&rft.pages=4608+-+4617&rft.genre=article