Tetrahedron Letters p. 3709 - 3712 (1988)
Update date:2022-09-26
Topics:
Jongejan, Jaap A.
Bezemer, Roland P.
Duine, Johannis A.
The scheme developed by Corey and Tramontano <5> for the synthesis of PQQ 7 was adopted to prepare 3-(13)C-PQQ 7a. 3-(2)H-PQQ 7b could be obtained by a modification of this procedure. 8-(2)H-PQQ 7c was prepared by a different approach, applying isatin 5 in a Pfitzinger quinoline synthesis.Merits of this approach for the synthesis of radiolabelled PQQ are discussed.
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