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US 5,294,723 AGranted
Salts of glucopyranose derivatives and its intermediate
AssigneeOno Pharmaceutical Co., Ltd.
InventorsKatsuhiro Imaki, Shinsuke Hashimoto, Hirohisa Wakatsuka
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Abstract
A salt of glucopyranose derivative of the formula (I) ##STR1## wherein R.sup.2 is ##STR2## R.sup.3 is ##STR3## Y.sup.+ is sodium ion or tris(hydroxymethyl)methylammonium ion; and a glucopyranose derivative of the formula (II) ##STR4## wherein all the symbols are the same meaning as hereinbefore defined, is an important intermediate for the preparation of compound of the formula (I).
Claims1
A glucopyranose derivative of the formula (II) ##STR42## wherein R.sup.2 is ##STR43## wherein R.sup.3 is ##STR44##
Dependencies are inferred from the claim text.