HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1467306Generated: November 1, 2026
1,2-Dichloroethane → N-[(3R)-1-(2-cyanobenzyl)piperidin-3-yl]-3-pyridin-4-yl-1-trityl-1H-indazole-5-carboxamide
https://huagongshe.com/reaction/1467306
Participants
| Role | Name | HCID | Charge |
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| Reactant | 1,2-Dichloroethane | HCID 11 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 3-pyridin-4-yl-1-trityl-1H-indazole-5-carboxylic acid | HCID 67996335 | — |
| Reactant | Alogliptin Impurity D | HCID 70652209 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | N-[(3R)-1-(2-cyanobenzyl)piperidin-3-yl]-3-pyridin-4-yl-1-trityl-1H-indazole-5-carboxamide | HCID 86681276 | — |
Reaction Steps
To a microwave vial equipped with a stir bar was added 3-(pyridin-4-yl)-1-trityl-1H-indazole-5-carboxylic acid (50 mg, 0.104 mmol), HOBT (23.85 mg, 0.156 mmol), EDC (29.9 mg, 0.156 mmol), DIPEA (54.4 μl, 0.311 mmol), 2-{[(3R)-3-aminopiperidin-1-yl]methyl}benzonitrile (22.35 mg, 0.104 mmol), and DMF (1038 μl). The vial was sealed and heated to 40° C. The LCMS taken after 23 hours indicates formation of the desired product. The crude reaction mixture was filtered through a column pre-packed with celite. The material was dry loaded onto 2×10 g columns. The desired product eluted and fractions were collected and concentrated in vacuo.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08999957B2 |
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| Source dataset | uspto-grants-2015_04 |
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| ORD ID | ord-114e80e182674399bf2e744408e4f6b5 |
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| Source note | uspto-grants-2015_04 |
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