反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
Synthesis of 2-methylalanyl-N-[(3R,4S,5S)-3-methoxy-1-{(2S)-2-[(1R,2R)-1-methoxy-3-{[(2S)-1-methoxy-1-oxo-3-phenylpropan-2-yl]amino}-2-methyl-3-oxopropyl]pyrrolidin-1-yl}-5-methyl-1-oxoheptan-4-yl]-N-methyl-L-valinamide (#70). According to general procedure A, from #68 (240 mg, 0.255 mmol, 1 eq.), dichloromethane (10 mL, 0.026 M) and diethylamine (10 mL) was synthesized #70 (120 mg, 65%) as a white solid/glass mix after silica gel chromatography (Gradient: 0% to 10% methanol in dichloromethane). HPLC (Protocol A at 45° C.): m/z 762.7 [M+H+], 740.4 [M+Na+], retention time=6.903 minutes; 1H NMR (400 MHz, DMSO-d6), presumed to be a mixture of rotamers, characteristic signals: δ [8.26 (d, J=8.1 Hz) and 8.49 (d, J=8.3 Hz), total 1H], [8.03 (d, J=9.5 Hz) and 8.07 (d, J=9.5 Hz), total 1H], 7.14-7.27 (m, 5H), 3.63 and 3.67 (2 s, total 3H), 3.16, 3.18, 3.20 and 3.25 (4 s, total 6H), 2.92 and 3.01 (2 br s, total 3H), 1.20 and 1.22 (2 s, total 3H), 1.12 and 1.13 (2 s, total 3H), [1.02 (d, J=6.8 Hz) and 1.06 (d, J=6.7 Hz), total 3H], 0.74-0.80 (m, 3H).
WORKUP
后处理
- customat 45° C.
- additiona mixture of rotamers, characteristic signals
- custom[8.26 (d, J=8.1 Hz) and 8.49 (d, J=8.3 Hz), total 1H], [8.03 (d, J=9.5 Hz) and 8.07 (d, J=9.5 Hz), total 1H], 7.14-7.27 (m, 5H), 3.63 and 3.67 (2 s, total 3H), 3.16, 3.18, 3.20 and 3.25 (4 s, total 6H), 2.92 and 3.01 (2 br s, total 3H), 1.20 and 1.22 (2 s, total 3H), 1.12 and 1.13 (2 s, total 3H), [1.02 (d, J=6.8 Hz) and 1.06 (d, J=6.7 Hz), total 3H], 0.74-0.80 (m, 3H)