反应详情

3-{1-[2-(1-benzothiophene-3-yl)ethyl]-1,2,3,6-tetrahydro-4-pyridinyl}-1H-indole (358 mg, 1 mmol) (obtained from example 29, step 2) in dry THF (50 ml) was slowly added to a stirred suspension of hexane and washed with 60% sodium hydride (44 mg) at 0° C. After the addition, the reaction mixture was stirred for 30 min and methyl iodide (213 mg, 1.5 mmol) was added. The reaction mixture was stirred for 4 hrs and quenched carefully with ice cold water. The reaction mixture was extracted with chloroform; washed well with water; dried over anhydrous MgSO4; filtered and concentrated. The residue obtained was purified by silica-gel column chromatography by eluting it with 50% ethyl acetate:hexane. Light green semi-solid. Yield: 98 mg (26%); 373 (M+H); 1HNMR (400 MHz, CDCl3): 8.08˜7.82 (m, 3H); 7.40˜6.90 (m, 7H); 6.21˜6.19 (s, 1H); 3.80 (s, 3H); 3.48˜2.60 (m, 10H).

1. washwashed with 60% sodium hydride (44 mg) at 0° C
2. additionAfter the addition
3. stirringThe reaction mixture was stirred for 4 hrs
4. customquenched carefully with ice cold water
5. extractionThe reaction mixture was extracted with chloroform
6. washwashed well with water
7. dry with materialdried over anhydrous MgSO4
8. filtrationfiltered
9. concentrationconcentrated
10. customThe residue obtained
11. customwas purified by silica-gel column chromatography
12. washby eluting it with 50% ethyl acetate