?url_ver=Z39.88-2004&rft_id=10.1021%2Fol051839s&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Wipf%2C+P&rft.aulast=Wipf&rft.aufirst=P&rft.issue=20&rft.volume=7&rft.date=29+September+2005&rft.issn=1523-7060&rft.atitle=Metathesis+reactions+of+pyrazolotriazinones+generate+dynamic+combinatorial+libraries&rft.title=Organic+Letters&rft.pages=4483+-+4486&rft.genre=article