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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 353262Generated: October 27, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/353262

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridineHCID 1049—
ReactantDicyclohexylcarbodiimideHCID 10868—
Reactant2-(4,5-Dichloro-2-nitrophenyl)acetic acidHCID 244198—
ReactantEther hydrochlorideHCID 10953452—
Reactant2-(2-Nitro-4,5-dichlorophenyl)-N-methyl-N-[(+/-)-trans-2-(1-pyrrolidinyl)-7-nitro-1,2,3,4-tetrahydronaphth-1-yl]acetamideHCID 22879436—
ProductHydrochloric AcidHCID 313—
Product2-(2-Nitro-4,5-dichlorophenyl)-N-methyl-N-[(1S)-1-(3-nitrophenyl)-2-(1-pyrrolidinyl)ethyl]acetamideHCID 11420249—

Reaction Steps

This compound was prepared via the general DCC/pyr coupling procedure from 8 (0.3690 g, 1.4801 mmol), 2-nitro-4,5-dichlorophenylacetic acid (0.7301 g, 2.920 mmol), DCC(0.6213 g, 3.01 mmol), and pyridine (0.24 mL, 3.01 mmol). The crude product was converted to the HCl salt with Et2O—HCl without chromatography and crystallized from MeOH to yield 13 HCl.(0.3232 g, 42%): m.p. (HCl salt) 165° C. (dec); 1H NMR (HCl salt, DMSO-d6) δ2.0 (br s, 4H, —CH2CH2—), 2.93 (s, 3H, —NCH3), 3.1-4.3 (complex, 6H, 3 —CH2—), 4.4 (s, 2H, benzylic methylene), 6.2 (m, 1H, —CH—), 7.7-7.8 (m, 2H, aromatic), 7.9 (s, 1H, aromatic), 8.14 (s, 1H, aromatic), 8.27 (d, J=7.7 Hz, 1H, aromatic), 8.43 (s, 1H, aromatic). MS(FAB) m/z 481. Anal. (C, H, N) C21H22N4O5Cl2 .HCl.0.5MeOH.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06750216B2
Source datasetuspto-grants-2004_06
ORD IDord-87ce638e030a4c80b85ed3c789f67959
Source noteuspto-grants-2004_06