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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Tozyo; Takehiko
Address:
Kobe, JP
No. of patents:
2
Patents:












Patent Number Title Of Patent Date Issued
5587505 Triterpene derivatives and endothelin-receptor antagonists containing the same December 24, 1996
Triterpene derivatives of the formula (I): ##STR1## wherein R.sup.1 is hydrogen or metabolic ester residue; and R.sup.2 is hydrogen or --R.sup.3 -R.sup.4 wherein R.sup.3 is --SO.sub.3 --, --CH.sub.2 COO--, --COCOO--, or --COR.sup.5 COO-- (R.sup.5 is lower alkylene or lower alkeny
5463107 Triterpene derivatives and endothelin-receptor antagonists containing the same October 31, 1995
Triterpene derivatives of the formula (I): ##STR1## wherein R.sup.1 is hydrogen or metabolic ester residue; and R.sup.2 is hydrogen or --R.sup.3 --R.sup.4 wherein R.sup.3 is --SO.sub.3 --, --CH.sub.2 COO--, --COCOO--, or --COR.sup.5 COO-- (R.sup.5 is lower alkylene or lower alken










 
 
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