Phenazines and natural products; novel synthesis of saphenic acid
L Petersen, KJ Jensen, J Nielsen
Index: Petersen, Lars; Jensen, Knud J.; Nielsen, John Synthesis, 1999 , # 10 p. 1763 - 1766
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Citation Number: 7
Abstract
Abstract: The natural product saphenic acid (6-(1-hydroxyethyl)-1-phenazinecarboxylic acid) was synthesized from readily accessible starting materials. The desired product was obtained in an overall yield of 22% for four steps with the key steps being formation of a diphenylamine, followed by cyclization under alkaline and reducing conditions. Assignments of 1H NMR spectra were achieved by homo-and heteronuclear 1D and 2D correlations. ...
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