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CAS No. : | 19741-14-1 | MDL No. : | MFCD00075774 |
Formula : | C15H15N7O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | LWCXZSDKANNOAR-UHFFFAOYSA-N |
M.W : | 325.33 | Pubchem ID : | 72441 |
Synonyms : |
DAMPA
|
Chemical Name : | 4-(((2,4-Diaminopteridin-6-yl)methyl)(methyl)amino)benzoic acid |
Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P280-P301+P312-P302+P352-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
91% | <strong>[945-24-4]2,4-diamino-6-(hydroxymethyl)pteridine</strong> hydrochloride (4.40 g, 19.2 mmol) was dissolved in hot water (150 mL) and after cooling to 21 C the solution was neutralized with 1M NaOH aq. solution to pH 7 (ca. 20 mL) . The formed precipitates were collected by filtration, washed with water, and dried in vacuo over P205 to afford an orange-beige solid corresponding to 2,4-diamino-6- (hydroxymethyl)pteridine. The solid was suspended in dry DMAc (25 mL) and triphenylphosphine dibromide ( 18.1 g, 42.9 mmol) was added to the suspension. The turbid and dark mixture was stirred for 24 h at 20 C under a N2 atmosphere. Then 4-aminobenzoic acid (2.97 g, 19.6 mmol) was added to the reaction and stirred for 3 additional days. The reaction mixture was poured into 250 mL of 0.33M NaOH and the precipitate was filtered off. The filtrate was neutralized with 10% aq . acetic acid (ca. 20 mL and the precipitate form upon neutralization was filtered, washed with water, triturated with MeOH, filtered, and dried in vacuo to afford 7 as an orange-beige solid (5.70 g, 91%) . XH NMR (400 MHz, DMSO-d5) delta 12.15 (br s, 1H), 8.63 (s, 1H), 8.17 (br s, 1H), 7.94 (br s, 1H), 7.73 (d, J = 9.0 Hz, 2H), 7.04 (br s, 2H), 6.83 (d, J = 9.0 Hz, 2H), 4.81 (s, 2H), 3.23 (s, 3H); 13C NMR (101 MHz, DMSO-d5) delta 167.8, 163.2, 161.1, 152.3, 149.5, 147.8, 131.5, 122.2, 118.1, 111.7, 100.0, 55.2, 39.6. |
A1466192[ 70844-48-3 ]
Methotrexate Related Compound E
Reason: Free-salt