1-Sulfo-2-oxoazetidine derivatives and their production
申请人:Takeda Chemical Industries, Ltd.
公开号:US04550105A1
公开(公告)日:1985-10-29
Disclosed are compounds of the general formula: ##STR1## wherein R.sub.1 is amino, an acylated amino or a protected amino group, X is hydrogen or methoxy, and R' is hydrogen, R or R.sup.4 wherein R is an organic residue attached to the azetidine ring through a carbon atom therein and R.sub.4 is azido, a halogen, an amino group which may optionally be acylated or a group of the formula --OR.sub.5, ##STR2## or --S--S--R.sub.5 wherein R.sub.5 is an organic residue and n is 0, 1 or 2, and pharmaceutically acceptable salts and esters thereof. The compounds have antimicrobial and/or .beta.-lactamase-inhibitory activity and are of value as drugs for human beings and domesticated animals.
1-sulfo-2-oxoazetidine derivatives and their production
申请人:Takeda Chemical Industries, Ltd.
公开号:US04782147A1
公开(公告)日:1988-11-01
Disclosed are compounds of the general formula: ##STR1## wherein R.sub.1 is amino, an acylated amino or a protected amino group, X is hydrogen or methoxy, and R' is hydrogen, R or R.sup.4 wherein R is an organic residue attached to the azetidine ring through a carbon atom therein and R.sub.4 is azido, a halogen, an amino group which may optionally be acylated or a group of the formula ##STR2## wherein R.sub.5 is an organic residue and n is 0, 1 or 2, and pharmaceutically acceptable salts and esters thereof. The compounds have antimicrobial and/or .beta.-lactamase-inhibitory activity and are of value as drugs for human beings and domesticated animals.
1-Sulfo-2-oxoazetidine derivatives, their production and use
申请人:Takeda Chemical Industries, Ltd.
公开号:EP0053816A1
公开(公告)日:1982-06-16
A 1-sulfo-2-oxoazetidine derivative of formula
wherein R is a residue derived from an organic compound by removal of one hydrogen atom attached to a carbon atom thereof; R' is an amino group which may optionally be , acylated or protected; X is hydrogen or methoxy, and methods of producing said compound (I) which may be written as follows
or
wherein the symbols have the same meanings as respectively defined above.
The compound (I) has improved antimicrobial and β-lactamase-inhibitory activities and is of value as drugs for human beings and domesticated animals.