Synthesis of 14C??labeled 4??hydroxyindole as an intermediate for the preparation of (S)??2??[4??[2??[3??(indol??2??[14C]??4??yloxy)??2??hydroxypropylamino]??2??methylpropyl]?? …

…, DK Clodfelter, WJ Wheeler

Index: Czeskis, Boris A.; Clodfelter, Dean K.; Wheeler, William J. Journal of Labelled Compounds and Radiopharmaceuticals, 2002 , vol. 45, # 13 p. 1143 - 1152

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Citation Number: 10

Abstract

Abstract Synthesis of 4-hydroxyindole labeled with 14 C at the 2-position was accomplished based on the vicarious nucleophilic substitution reaction of benzyl-protected 3-nitrophenol with p-chlorophenoxyacetonitrile-[1-14 C]. This was followed by the reductive cyclization of o- nitrocyanomethyl derivative by palladium catalyzed hydrogenation. p- Chlorophenoxyacetonitrile-[1-14 C] was prepared from commercially available p- ...

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