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CAS No. : | 112887-68-0 | MDL No. : | |
Formula : | C21H22N4O6S | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | IVTVGDXNLFLDRM-HNNXBMFYSA-N |
M.W : | 458.49 | Pubchem ID : | 135400182 |
Synonyms : |
ZD 1694; TDX; D-1694; ICI-D1694
|
Chemical Name : | (S)-2-(5-(Methyl((2-methyl-4-oxo-1,4-dihydroquinazolin-6-yl)methyl)amino)thiophene-2-carboxamido)pentanedioic acid |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
80% | With sodium hydroxide In water at 25℃; | To the reaction flask, 1.35 g of sodium hydroxide and 3.3 ml of water were added, and the mixture was cooled to 25 °C or lower, and 1.35 g of the starting material (Compound 2) was slowly added with stirring. The mixture was further stirred for 1.5 to 2 hours, and then the reaction solution (2 × 27ml), water phase filtration. The filtrate was stirred with 2M hydrochloric acid to adjust the pH to 3.0, and the mixture was stirred for 2 hours. The product was washed with distilled water and the solid was dried under vacuum at 80 °C for 10 hours to give 0.96 g of product, 80percent yield and 99.5percent HPLC purity. |
80.6% | at 20℃; for 2 h; | 340.0 g of N-[[5-[N-(3,4-dihydro-2-methyl-4-oxo-6-quinazolinyl)-methyl]-N-methyl]Amino-2-thiophenecarbonyl]-L-glutamic acid diethyl ester was added in portions to a 3N sodium hydroxide solution (6500 ml) and the reaction was stirred at room temperature for 2 hours. TLC monitored the progress of the reaction. After the reaction was completed, the pH was adjusted to 3 to 4 with 3N hydrochloric acid, the crystals were further stirred for 1 hour, and suction filtered to give a yellow solid. Recrystallization from methanol-water (4:1) gave 244.2 g of a pale yellow solid, namely raltitrexed, with a yield of 80.6percent, an HPLC purity of 99.8percent, |