Reference of 800401-68-7, With the rapid development and complex challenges of chemical substances, the synthesis of new drugs is usually one of the most effective ways to increase yield.800401-68-7, name is 5-Chloro-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid, molecular formula is C8H5ClN2O2, molecular weight is 196.59, as common compound, the synthetic route is as follows.
Example 69: 5-Chloro-lH-pyrrolo[2,3-c]pyridine-2-carboxylic acid (2-oxo-l,2,3,4-tetrahydro- [1,5] naphthyridin-3-yl)amide; To a solution of 5-chloro-lH-pyrrolo[2,3-c]pyridine-2-carboxylic acid (Preparation 3, 50mg, 0.25mmol), EDCI (60mg, 0.31mmol) and HOBt monohydrate (40mg, 0.26mmol) in DMF (5mL) was added of 3-amino-3,4-dihydro-lH-[l,5]naphthyridin-2-one dihydrochloride (WO 03/074532, 60mg, 0.25mmol) and DIPEA (186muL, 1.07mmol) and the resulting solution stirred for 12h at rt. After concentration in vacuo the residue was partitioned between THF (5OmL) and carbonate buffer (10OmL, pH 10.5). The layers were separated and the aqueous phase extracted with THF (3x50mL). The combined THF fractions were washed with brine (5OmL), dried (MgSO4), filtered and concentrated. Addition of methanol (~2mL) led to the precipitation of the title compound, which was obtained as an off-white solid after filtration, delta? (ds DMSO): 3.23 (IH, dd), 3.38 (IH, dd), 4.95 (IH, m), 7.25 (3H, m), 7.80 (IH, s), 8.14 (IH, m), 8.61 (IH, s), 9.11 (IH, d), 10.50 (IH, s), 12.37 (IH, br s); m/z (ES+) = 342.03 [M-2HC1+H]+; RT = 2.40 min.
The chemical industry reduces the impact on the environment during synthesis 800401-68-7, I believe this compound will play a more active role in future production and life.
Reference:
Patent; PROSIDION LIMITED; WO2006/59164; (2006); A2;,
Pyridine – Wikipedia,
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