Synthesis and antihypertensive activity of a series of 8-substituted 1-oxa-3, 8-diazaspiro [4.5] decan-2-ones
…, AF Kluge, JT Nelson, AM Strosberg…
Index: Caroon; Clark; Kluge; Nelson; Strosberg; Unger; Michel; Whiting Journal of Medicinal Chemistry, 1981 , vol. 24, # 11 p. 1320 - 1328
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Citation Number: 31
Abstract
Method A of Scheme I1 was used to prepare the 3-substituted compounds 51-55, 57, and 58 (Table 11). Acylhydrazide 49, which was prepared by addition of ethyl lithioacetate to N- benzyl-4-piperidinone, followed by condensation with hydrazine, was converted to 5014 by way of a Curtius rearrangement. Alkylation of the sodium salt of 50 with a variety of alkyl halides gave 51-55. Attempted alkylation of the sodium salt of 50 with methyl iodide or ...
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