Aryl alkyl acid-cyclophosphamide derivative as well as preparation method and application thereof
A technology of cyclophosphamide and aryl alkanoic acid, which can be used in chemical instruments and methods, drug combinations, pharmaceutical formulations, etc., and can solve problems such as bladder toxicity
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Embodiment 1
[0017] Dihydro-1,3,2-benzoxaphos-7-carboxypropyl-2-amino, N,N-bis(2-chloroethyl)-3,4-dihydro-,2-oxide ( 1) Preparation:
[0018] (1) has a structure such as Figure 5 shown.
[0019] In the dry reactor, put 66.5g (0.5mol) aluminum trichloride and 100mL carbon disulfide, stir and cool to 7-8°C, quickly put 10.8g (0.1moL) anisole and 10.0g (0.1moL) succinic anhydride The mixture was reacted at 30-45°C for 1 hour, stood still for several hours, ice-thawed, and filtered to obtain 15.6 g of 4-methoxybenzoylpropionic acid with a yield of 75% and a melting point of 148-150°C.
[0020] Throw 10.4g (0.05moL) 4-methoxybenzoylpropionic acid and 2.4g (0.06moL) 80% hydrazine hydrate into the reactor, heat to about 140°C, react for 20 minutes, cool down to 100°C, brown solid Precipitate, slowly add 3.92g (0.07moL) KOH, after being completely dissolved, heat to 140°C to denitrify, complete, cool, add water, adjust pH to acidic with hydrochloric acid, precipitate solid, filter, and dry ove...
Embodiment 2
[0024] Dihydro-1,3,2-benzoxaphos-7-carboxypropyl-2-amino, N,N-bis(2-chloroethyl)-3-carboxymethyl-3,4-dihydro- , Preparation of 2-oxide (2):
[0025] (2) has a structure such as Figure 6 shown.
[0026] Add 3.88g (20 mmol) 4-hydroxyphenylbutyric acid to dissolve in 50 mL THF in the reactor, add 3mL (40mmol) formaldehyde, 1.96g (22mmoL) glycine methyl ester, heat, react for 8h, cool, concentrate, The crude product of Mannich base was obtained, and the pure product was obtained by column chromatography. Take 0.24g (1mmol) of this Mannich base, 0.26g (1mmol) of phosphoryl mustard, dissolve in 15 mL of dry tetrahydrofuran, add dropwise 0.3mL of Et 3 The mixed solution of N and 5mL dry tetrahydrofuran was dripped over 30min, reacted at room temperature for 2h, then heated to reflux, monitored by TLC, filtered after stopping the reaction, removed insoluble matter, concentrated the filtrate, dissolved the residue in ethanol, and washed with sodium hydroxide Hydrolyze at room temp...
Embodiment 3
[0028] Dihydro-1,3,2-benzoxaphos-7-carboxypropyl-2-amino, N,N-bis(2-chloroethyl)-3-hydroxyethyl-3,4-dihydro- , Preparation of 2-oxide (3):
[0029] (3) has a structure such as Figure 7 shown.
[0030] Add 3.88g (20 mmol) 4-hydroxyphenylbutyric acid to dissolve in 50 mL THF in the reaction kettle, add 3 mL (40 mmol) formaldehyde, 1.34 g (22mmoL) monoethanolamine, heat, react for 6h, cool, and concentrate to obtain The crude product of Mannich base was purified by column chromatography. Take 0.23g (1mmol) of this Mannich base, 0.26g (1mmol) of phosphoryl mustard, dissolve in 15 mL of dry tetrahydrofuran, add dropwise 0.3mL of Et 3The mixed solution of N and 5mL dry tetrahydrofuran was dripped over 30min, reacted at room temperature for 2h, then heated to reflux, monitored by TLC, filtered after stopping the reaction, removed insoluble matter, concentrated the filtrate, and separated by column chromatography to obtain the target compound dihydrofuran -1,3,2-benzoxaphos-7-car...
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