Pyrano derivatives, a process for their preparation and their us

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...

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Details

424273B, 546199, 548305, 548326, A61K 31435, A61K 31415, C07D48700, C07D23502

Patent

active

043270999

ABSTRACT:
Compounds of the formula (I): ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from a hydrogen atom and a C.sub.1-3 alkyl group;

REFERENCES:
Chem. Abstracts 65:7130d.
Chem. Abstracts 74:22758h.

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