CAS:[76855-69-1]
4-acetoxyazetidin-2-one ( penem intermediate )
(3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone
Appearance: white or off-white crystal
Optical Purity : 99%(ee)
Assay : ≥98.5%( external standard method )
Specific optical rotation : [a] 25 D : +46 ~ +49 ( c=0.56 CHCl3 )
Melting point: 104 ~ 108蚓
4-acetoxyazetidin-2-one ( penem intermediate )
(3R,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-2-azetidinone
Appearance: white or off-white crystal
Optical Purity : 99%(ee)
Assay : ≥98.5%( external standard method )
Specific optical rotation : [a] 25 D : +46 ~ +49 ( c=0.56 CHCl3 )
Melting point: 104 ~ 108蚓
Features
white or off-white crystal^$^#Main Products
Lisinopril 4-acetoxyazetidin-2-one 4-AA