反应详情

N-{3-[(1R,2S,7R,8S)-3-(4-Fluoro-benzyl)-6-hydroxy-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide (prepared as described in Example 6, 168 mg, 0.299 mmol) was dissolved in dimethyl sulfoxide (15 mL). Reaction buffer was prepared by combining anhydrous D-glucose (3.3 g), GDH-102 (375 mg), and NADP+ (570 mg) in a 100 mM aqueous potassium phosphate (pH 8.0) solution (700 mL). Lyophilized MCYP-P1C11 (1800 mg, 1500 nmol, 0.84 nmol P450/mg, Codexis, Inc.) was dissolved in a 50 mM aqueous potassium phosphate (pH 8.0) solution (29 mL). The following components were added in order to a 2.8 L baffled Fernbach flask: the reaction buffer, followed by the MCYP-P1C11 stock solution, then the N-{3-[(1R,2S,7R,8S)-3-(4-fluoro-benzyl)-6-hydroxy-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide solution. The vial used to make the N-{3-[(1R,2S,7R,8S)-3-(4-fluoro-benzyl)-6-hydroxy-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide stock solution was washed with 0.1 M aqueous potassium phosphate (pH 8.0) solution (6 mL) and this solution was then added to the flask, bringing the total volume of the reaction to 750 mL. The mixture was then incubated for 24 h at 30° C. with gentle shaking, followed by freezing at −80° C. Methanol (1.5 L) was added to the thawed reaction mixture resulting in the formation of a precipitate. The solids were removed as a pellet by centrifugation for 45 min at 10,000 rpm. The supernatant was concentrated in vacuo and the residue was purified by prep-HPLC to afford the desired product, N-{3-[(1R,2S,7R,8S)-3-(4-fluoro-benzyl)-6,9-dihydroxy-4-oxo-3-aza-tricyclo[6.2.1.02,7]undec-5-en-5-yl]-1,1-dioxo-1,4-dihydro-1λ6-benzo[1,2,4]thiadiazin-7-yl}-methanesulfonamide (49.5 mg, 0.086 mmol, 29%), as a white solid. 1H NMR (500 MHz, DMSO-d6) δ: 1.21 (1H, dd, J1=14.7 Hz, J2=4.8 Hz), 1.46-1.59 (3H, m), 2.44 (1H, s), 2.53 (1H, s), 2.87 (1H, d, J=8.7 Hz), 3.07 (3H, s), 3.39 (1H, d, J=8.5 Hz), 3.80 (1H, d, J=6.0 Hz), 4.42 (1H, d, J=15.5 Hz), 4.96 (1H, d, J=15.7 Hz), 7.16 (2H, t, J=8.7 Hz), 7.32-7.34 (2H, m), 7.52 (1H, dd, J1=9.0 Hz, J2=2.3 Hz), 7.59-7.60 (2H, m), 10.23 (1H, s), 14.08 (1H, s), 15.03 (1H, bs). LC-MS (ESI) calcd for C25H25FN4O7S2 576.11. found 577.5 [M+H+].

1. customReaction
2. custombuffer was prepared
3. additionThe following components were added in order to a 2.8 L
4. customthe reaction buffer
5. washwas washed with 0.1 M aqueous potassium phosphate (pH 8.0) solution (6 mL)
6. additionthis solution was then added to the flask
7. customthe total volume of the reaction to 750 mL
8. customby freezing at −80° C
9. customresulting in the formation of a precipitate
10. customThe solids were removed as a pellet by centrifugation for 45 min at 10,000 rpm
11. concentrationThe supernatant was concentrated in vacuo
12. customthe residue was purified by prep-HPLC