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Antifilarial activity of some 2H-1-benzopyran-2-ones (coumarins)

✍ Scribed by R.P Tripathi; R Tripathi; A.P Bhaduri; S.N Singh; R.K Chatterjee; P.K Murthy


Book ID
117006603
Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
78 KB
Volume
76
Category
Article
ISSN
0001-706X

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## Abstract A simple, highly selective transformation of 5,6,7,8‐tetrahydro‐2__H__‐1‐benzopyran‐2,5‐diones 1–3 and 14 with some phenylhydrazines and heterocyclic hydrazines to 5‐hydrazono‐2__H__‐1‐benzopyran‐2‐ones 4–12 and 15–16 is described. Under more severe conditions the hydrazonoquinoline der