| —— |
(3R,4R)-4-{(1S)-1-ethoxycarbonylethoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-hydroxymethyl)-azetidin-2-one |
90211-51-1 |
C30H30N2O8 |
546.577 |
| —— |
(3R,4R)-4-{(1R)-1-ethoxycarbonylethoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-chloromethyl}azetidin-2-one |
90211-52-2 |
C30H29ClN2O7 |
565.022 |
| —— |
(3R,4R)-4-{(1S)-1-ethoxycarbonylethoxy)-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-chloromethyl)azetidin-2-one |
90211-52-2 |
C30H29ClN2O7 |
565.022 |
| —— |
(3R,4R)-4-{(1R)-1-ethoxycarbonylethoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90211-53-3 |
C48H43N2O7P |
790.852 |
| —— |
(3R,4R)-4-{(1S)-1-ethoxycarbonylethoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90244-27-2 |
C48H43N2O7P |
790.852 |
| —— |
(3R,4R)-4-{(1R)-1-carboxyethoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90211-54-4 |
C46H39N2O7P |
762.799 |
| —— |
(3R,4R)-4-{(1S)-1-carboxyethoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90244-28-3 |
C46H39N2O7P |
762.799 |
| —— |
benzhydryl (5S,7R,8R)-8-benzamido-5-methyl-4,9-dioxo-6-oxa-1-azabicyclo[5.2.0]non-2-ene-2-carboxylate |
130675-30-8 |
C29H24N2O6 |
496.519 |
| —— |
[(2R,3R)-3-Benzoylamino-2-((S)-2-ethoxycarbonyloxy-1-methyl-2-oxo-ethoxy)-4-oxo-azetidin-1-yl]-(triphenyl-λ5-phosphanylidene)-acetic acid benzhydryl ester |
130675-27-3 |
C49H43N2O9P |
834.862 |
| —— |
(3R,4R)-4-{(1S)-3-chloro-2-oxo-1-methylpropoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90244-30-7 |
C47H40ClN2O6P |
795.271 |
| —— |
(3R,4R)-4-{(1R)-3-diazo-2-oxo-1-methylpropoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90211-56-6 |
C47H39N4O6P |
786.824 |
| —— |
(3R,4R)-4-{(1S)-3-diazo-2-oxo-1-methylpropoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90244-29-4 |
C47H39N4O6P |
786.824 |
| —— |
benzhydryl (4S,6R,7R)-3-(acetyloxymethyl)-7-benzamido-4-methyl-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
130675-29-5 |
C31H28N2O7 |
540.573 |
| —— |
benzhydryl (4R,6R,7R)-3-(acetyloxymethyl)-7-benzamido-4-methyl-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
130793-06-5 |
C31H28N2O7 |
540.573 |
| —— |
benzhydryl (4S,6R,7R)-7-benzamido-3-(chloromethyl)-4-methyl-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
130793-07-6 |
C29H25ClN2O5 |
516.981 |
| —— |
(3R,4R)-4-{(1S)-3-(1-methyl-1H-tetrazole-5-yl)thio-2-oxo-1-methylpropoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)-azetidin-2-one |
90211-61-3 |
C49H43N6O6PS |
874.957 |
| —— |
benzhydryl 2-[(2R,3R)-3-benzamido-2-[(2R)-4-(1-methyltetrazol-5-yl)sulfanyl-3-oxobutan-2-yl]oxy-4-oxoazetidin-1-yl]-2-(triphenyl-lambda5-phosphanylidene)acetate |
90318-96-0 |
C49H43N6O6PS |
874.957 |
| —— |
benzhydryl 2-[(2R,3R)-3-benzamido-2-[(2S)-4-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]-3-oxobutan-2-yl]oxy-4-oxoazetidin-1-yl]-2-(triphenyl-λ5-phosphanylidene)acetate |
130793-04-3 |
C50H43N4O6PS2 |
891.02 |
| —— |
(3R,4R)-4-{(1R)-3-(2-methyl-1,3,4-thiadiazole-5-yl)thio-2-oxo-1-methylpropoxy}-3-benzamido-1-(1-diphenylmethoxycarbonyl-1-triphenylphosphoranylidenemethyl)azetidin-2-one |
90211-62-4 |
C50H43N4O6PS2 |
891.02 |
| —— |
benzhydryl (4S,6R,7R)-7-benzamido-4-methyl-3-[(1-methyltetrazol-5-yl)sulfanylmethyl]-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
90244-15-8 |
C31H28N6O5S |
596.667 |
| —— |
benzhydryl (4R,6R,7R)-7-benzamido-4-methyl-3-[(1-methyltetrazol-5-yl)sulfanylmethyl]-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
90211-58-8 |
C31H28N6O5S |
596.667 |
| —— |
benzhydryl (4S,6R,7R)-7-benzamido-4-methyl-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
130793-05-4 |
C32H28N4O5S2 |
612.73 |
| —— |
benzhydryl (4R,6R,7R)-7-benzamido-4-methyl-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-oxa-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate |
90211-63-5 |
C32H28N4O5S2 |
612.73 |