تفاعل #1269172

معادلة التفاعل

6-methoxy-8-(4-methyl-[1,4]diazepan-1-yl)-4-oxo-1,4-dihydro-quinoline-2-carboxylic acid

6-Methoxy-8-(4-methyl-[1,4]diazepan-1-yl)-4-oxo-1,4-dihydro-quinoline-2-carboxylic acid

diisopropylethyl amine

TBTU

HOBt

4-morpholinoaniline

→

desired product

المردود 69.2%

6-Methoxy-8-(4-methyl-[1,4]diazepan-1-yl)-4-oxo-1,4-dihydro-quinoline-2-carboxylic acid (4-morpholin-4-yl-phenyl)-amide

المردود 69.2%

المذيبات

methanol

dimethylformamide

ظروف التفاعل

المعالجة

1. 1
   تركيزThe reaction was concentrated in vacuo
2. 2
   ترشيحFiltration of the resulting mixture
3. 3
   أخرىafforded some product as a yellow solid
4. 4
   تركيزThe filtrates were concentrated
5. 5
   أخرىpartitioned between methylene chloride and saturated aqueous sodium bicarbonate
6. 6
   غسيلThe organic layer was washed with saturated sodium bicarbonate
7. 7
   تجفيفdried (MgSO4)
8. 8
   تركيزconcentrated under vacuum
9. 9
   أخرىto afford a brown solid
10. 10
    ترشيحfiltered

الإجراء التجريبي

To a solution of 6-methoxy-8-(4-methyl-[1,4]diazepan-1-yl)-4-oxo-1,4-dihydro-quinoline-2-carboxylic acid (2.10 mmol) (Reference Example 25b) and diisopropylethyl amine (1.4 mL, 8.6 mmol) in 34 mL dimethylformamide was added TBTU (1.40 g, 4.36 mmol) and HOBt (0.588 g, 4.35 mmol) followed by the addition of 4-morpholinoaniline (0.463 g, 2.60 mmol). The resulting dark brown solution was stirred at room temperature under nitrogen for 19 hours. The reaction was concentrated in vacuo and the resulting crude product was taken up in methylene chloride/methanol. Filtration of the resulting mixture afforded some product as a yellow solid. The filtrates were concentrated and partitioned between methylene chloride and saturated aqueous sodium bicarbonate. The organic layer was washed with saturated sodium bicarbonate, dried (MgSO4), and concentrated under vacuum to afford a brown solid. This was suspended in methanol and filtered to afford the desired product as a yellow solid (0.714 g, 69%). 1H NMR (300 MHz, DMSO, d6) δ 9.97 (bs, 1 H, NH), 7.67 (d, 2 H, Jo=8.8 Hz, ArH2′& H6′), 7.47 (bs, 1 H, ArH5), 7.00 (s, 1 H, C═CH), 6.99 (d, 2 H, Jo=8.8 Hz, ArH3′& H5′), 6.71 (bs, 1 H, ArH7), 3.85 (s, 3 H, OCH3), 3.75 (t, 4 H, J=4.6 Hz, OCH2CH2N), 3.70 (bs, 2 H, ArNCH2CH2CH2NCH3), 3.55 (bs, 2 H, ArNCH2CH2NCH3), 3.09 (t, 4 H, J=4.6 Hz, OCH2CH2N), 2.95 (bs, 2 H, ArNCH2CH2NCH3), 2.73 (bs, 2 H, ArNCH2CH2CH2NCH3), 2.36 (s, 3 H, NCH3), 2.07 (bs, 2 H ArNCH2CH2CH2NCH3); Mass Spec.: calc. for [C27H33N5O4+H]+ Theor. m/z=492; Obs. 492.

المصدر