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pd_meltingpoint:190-192 oC (decomp)**
Appearance:White solid
Purity:99%
Controlled and efficient activation is t...
Ado-trastuzumab emtansine (T-DM1) is an ...
The invention discloses a maytansine dec...
Maytansine, a highly cytotoxic natural p...
N2'-deacetyl-N2'-[3-(methyldithio)-1-oxopropyl]maytansine
N2'-deacetyl-N2'-(3-mercapto-1-oxopropyl)maytansine
Conditions | Yield |
---|---|
With
ethylenediaminetetraacetic acid; diothiothreitol;
In
methanol; phosphate buffer; ethyl acetate;
for 3h;
pH=7.5;
|
76% |
With
diothiothreitol;
at 20 ℃;
|
|
With
1,4-dithio-L-threitol;
In
methanol; ethyl acetate;
at 20 ℃;
for 3.5h;
Inert atmosphere;
|
4.1 g |
maytansinol
N2'-deacetyl-N2'-(3-mercapto-1-oxopropyl)maytansine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps
1: 32 percent / dicyclohexylcarbodiimide; ZnCl2 / CH2Cl2; diethyl ether / 2 h / 20 °C
2: 76 percent / dithiothreitol; EDTA / methanol; ethyl acetate; aq. phosphate buffer / 3 h / pH 7.5
With
ethylenediaminetetraacetic acid; dicyclohexyl-carbodiimide; zinc(II) chloride; diothiothreitol;
In
methanol; phosphate buffer; diethyl ether; dichloromethane; ethyl acetate;
|
|
Multi-step reaction with 3 steps
1: zinc trifluoromethanesulfonate; N-ethyl-N,N-diisopropylamine / N,N-dimethyl-formamide / 20 h / 10 - 20 °C / Inert atmosphere; Cooling with ice
2: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 3 h / 25 °C
3: 1,4-dithio-L-threitol / ethyl acetate; methanol / 3.5 h / 20 °C / Inert atmosphere
With
1,4-dithio-L-threitol; zinc trifluoromethanesulfonate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine;
In
methanol; dichloromethane; ethyl acetate; N,N-dimethyl-formamide;
|
N2'-deacetyl-N2'-[3-(methyldithio)-1-oxopropyl]maytansine
N-methyl-N-[(3-methyldithio)-1-oxopropyl]-L-alanine
maytansinol
ansamitocin P-3
N2'-deacetyl-N2'-(3-mercapto-1-oxopropyl)maytansine dimer
N2'-deacetyl-N2'-[3-[[1-[[4-[[[(1S)-5-amino-1-carboxypentyl]amino]carbonyl]cyclohexyl]methyl]-2,5-dioxo-3-pyrrolidinyl]thio]-1-oxopropyl]maytansine