191418-24-3

Upstream product

• 6780-38-7 N-phthaloylglycine chloride 
• 14371-10-9 (E)-3-phenylpropenal 
• 132015-06-6 1-<(1'S,2'S)-1'-(p-nitrophenyl)-1',3'-dihydroxy-2'-propyl>-3(S)-phthalimido-4(R)-styryl-azetidin-2-one 

Relevant academic research and scientific papers

2-amino-1-phenyl-propan-1,3-diol as chiral auxiliary. Application in the synthesis of cis 3-phthalimido-4-styryl-2-azetidinones

3,4-cis3,4-cis-1-N-(1'-phenyl-1',3'-dihydroxy-2'-propyl)-3-phthalimido-4 -styrylazetidinones were obtained in optically pure form by chiral Staudinger reaction. The cis-α/β-ratio could be influenced by the protective groups of the diol moiety. Removal of the chiral auxiliarity could be accomplished by direct oxidation, or by previous double bond formation, thus the 2-amino-1-phenyl-propan-1,3-diol can be regarded to a generally useful chiral auxiliary.

1-SULFO-2-OXOAZETIDINE DERIVATIVES AND THEIR PRODUCTION

Disclosed are compounds of the general formula: wherein R1 is amino, an acylated amino or a protected amino group, X is hydrogen or methoxy, and R is hydrogen, R or R4 where R is an organic residue attached to the azetidine ring through a carbon atom therein and R4 is azido, a halogen, an amino group which may optionally be acylated or a group of the formula wherein R5 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

Disclosed are compounds of the general formula: wherein R1 is amino, an acylated amino or a protected amino group, X is hydrogen or methoxy, and R' is hydrogen, R or R4 wherein R is an organic residue attached to the azetidine ring through a carbon atom therein and R4 is azido, a halogen, an amino group which may optionally be acylated or a group of the formula wherein R5 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

Disclosed are compounds of the general formula: wherein R1 is amino, an acylated amino or a protected amino group, X is hydrogen or methoxy, and R" is hydrogen, R or R4 wherein R is an organic residue attached to the azetidine ring through a carbon atom therein and R4 is azido, a halogen, an amino group which may optionally be acylated or a group of the formula ?OR5, or ?S-S-R5 wherein R5 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