反应详情

2-(4-Fluoro-phenyl)-10-methanesulfonyl-5-methylene-7-(2-nitro-benzenesulfonyl)-5,6,7,8,9,10-hexahydro-1-oxa-7,10,11-triaza-cycloocta[f]indene-3-carboxylic acid methylamide (4 mg, 7.94 umol) is dissolved in anhydrous THF (0.5 mL) and to this solution Cs2CO3 (25.9 mg, 0.08 mmol) followed by PS-thiophenol (Cardullo et. al Synlett 2005) (100 mg of resin with a 2 mmol/g of loading). This amount of resin is previously treated by shaking for 30 min in a sealed vial with 2 mL of a 0.7M solution of PPh3 in dry deoxygenated THF. The resin is filtered on a sintered glass, washed with dry THF and then used immediately without drying. The mixture is then stirred slowly overnight. The solid is filtered then washed several times with THF (25 mL) and CH2Cl2 (20 mL). The combined organic is evaporated to afford 2-(4-Fluoro-phenyl)-10-methanesulfonyl-5-methylene-5,6,7,8,9,10-hexahydro-1-oxa-7,10,11-triaza-cycloocta[f]indene-3-carboxylic acid methylamide (2 mg, 56%). MS-ES [M+H]+=444.9.

1. additionThis amount of resin is previously treated
2. customin dry
3. customdeoxygenated THF
4. filtrationThe resin is filtered on a sintered glass
5. washwashed with dry THF
6. customwithout drying
7. filtrationThe solid is filtered
8. washthen washed several times with THF (25 mL) and CH2Cl2 (20 mL)
9. customThe combined organic is evaporated