HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 252073Generated: October 30, 2026
1-Methylpiperazine → HCID 16039641, compound
https://huagongshe.com/reaction/252073
Participants
| Role | Name | HCID | Charge |
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| Reactant | 1-Methylpiperazine | HCID 53167 | — |
| Reactant | HCID 57949692 | HCID 57949692 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Ammonia | HCID 222 | 5% |
| Product | HCID 16039641 | HCID 16039641 | 132.4% |
Reaction Steps
Methanesulfonic acid 5-[7-methyl-1-oxo-2-(4-trifluoromethoxy-benzyl)-2,3-dihydro-1H-isoindol-5-yl]-pyridin-3-ylmethyl ester (36 mg, 0.071 mmol) was dissolved in THF (5 mL). N-Methyl piperazine (24 uL, 0.213 mmol) was added and the mixture stirred at 50° C. for 18 hrs. The mixture was cooled, diluted with water, and extracted with ethyl acetate. The organics were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated. Column chromatography (5% 2M NH3 in MeOH/CH2Cl2) provided the title compound (24 mg, 67%) as a yellow oil. 1H NMR (300 MHz, CDCl3): δ 8.73 (s, 1H), 8.56 (s, 1H), 7.86 (s, 1H), 7.42 (d, 2H), 7.37 (d, 2H), 7.19 (d, 2H), 4.82 (s, 2H), 4.32 (s, 2H), 3.60 (s, 2H), 2.85 (s, 3H), 2.52-2.42 (br s, 8H), 2.30 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07868008B2 |
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| Source dataset | uspto-grants-2011_01 |
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| ORD ID | ord-7da5dab666474a288f44abf49935bf8f |
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| Source note | uspto-grants-2011_01 |
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