تفاعل #969885

معادلة التفاعل

product

(5R)-5-{4-[2-(5-ethylpyridin-2-yl)ethoxy]benzyl}-1,3-thiazolidine-2,4-dione (−)-O,O′-dibenzoyl-L-tartrate

HCl

→

title compound

(5R)-5-{4-[2-(5-ethylpyridin-2-yl)ethoxy]benzyl}-1,3-thiazolidine-2,4-dione hydrochloride

المذيبات

MeOH

ظروف التفاعل

المعالجة

1. 1
   ترشيحThe solution was filtered
2. 2
   workup.ADDITIONEtOAc (9 mL) was poured into the stirred solution
3. 3
   ترشيحThe white solid was collected by filtration
4. 4
   غسيلwashed with EtOAc
5. 5
   أخرىdried at 30° C. under high vacuum

الإجراء التجريبي

The product from Example 15, Step 3 was dissolved in MeOH (2.25 mL) containing 37% HCl (0.134 mL) at 35° C. The solution was filtered, EtOAc (9 mL) was poured into the stirred solution and the mixture stirred for 20 min. The white solid was collected by filtration, washed with EtOAc and dried at 30° C. under high vacuum to give the title compound (0.181 g). (Method 1) 98.3%, Rt 10.65 min.; 1.7%, Rt 14.83 min e.e. 96.6%. LCMS (Method 2): Rt 2.90 min 99.39%, m/z 357 [MH+—HCl]. LCMS (Method 3) Rt 2.91 min, m/z 357 [MH+—HCl]. 1H NMR (400 MHz, DMSO-d6): δ 12.0 (1H, s), 8.70 (1H, d, J=1.7 Hz), 8.36 (1H, bd, J=8.3 Hz), 7.93 (1H, d, J=8.2 Hz), 7.15, 6.87 (4H, A2B2q, J=8.7 Hz), 4.86 (1H, dd, J 4.4, 8.9 Hz), 4.38 (2H, t, J=6.3 Hz), 3.44 (2H, t, J=6.2 Hz), 3.29 (1H, dd, J 4.3, 14.2 Hz), 3.06 (1H, dd, J 9.0, 14.3 Hz), 2.78 (2H, q, J=7.6 Hz), 1.23 (3H, t, J=7.6 Hz).

المصدر