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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1592697Generated: October 30, 2026

1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 1,2,3,4-Tetrahydro-isoquinoline-3-carboxylic acid 4-{[(4-tert-butyl-pyridin-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-3-hydroxymethyl-benzylamide

https://huagongshe.com/reaction/1592697

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 15908—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
Reactant1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid hydrochlorideHCID 2724135—
Reactant(5-Aminomethyl-2-{[(4-tert-butyl-pyridin-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-phenyl)-methanolHCID 67271580—
SolventDichloromethaneHCID 6344—
Product1,2,3,4-Tetrahydro-isoquinoline-3-carboxylic acid 4-{[(4-tert-butyl-pyridin-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-3-hydroxymethyl-benzylamideHCID 6727181128%

Reaction Steps

(5-Aminomethyl-2-{[(4-tert-butyl-pyridin-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-phenyl)-methanol (0.047 g, 0.11 mmol), (±)-1,2,3,4-tetrahydro-3-isoquinoline carboxylic acid hydrochloride (0.027 g, 0.13 mmol), HOBT (0.017 g, 0.13 mmol), EDCI (0.024 g, 0.13 mmol) and DIPEA (40 μL, 0.26 mmol) in CH2Cl2 (8 mL) were reacted according to General Procedure G. Purification by column chromatography on silica gel (CH2Cl2:MeOH:NH4OH, 94:5:1, v/v/v) afforded 1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid 4-{[(4-tert-butyl-pyridin-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-methyl}-3-hydroxymethyl-benzylamide as a white solid (0.018 g, 28%). 1H NMR (CDCl3) δ 1.40 (s, 9H), 1.59 (m, 1H), 1.89-2.02 (m, 2H), 2.22 (m, 1H), 2.69 (m, 1H), 2.79 (m, 1H), 3.22 (dt, 1H, J=12.0, 3.0 Hz), 3.55-3.66 (m, 4H), 3.87 (m, 1H), 3.94 (d, 2H, J=4.5 Hz), 4.06 (d, 2H, J=12.0 Hz), 4.40 (m, 3H), 7.04-7.24 (m, 9H), 7.36 (d, 1H, J=7.5 Hz), 7.52 (br t, 1H), 7.89 (s, 1H), 8.36 (d, 1H, J=6.0 Hz), 8.51 (d, 1H, J=3.0 Hz). HPLC: 89%. ES-MS m/z 604 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07291631B2
Source datasetuspto-grants-2007_11
ORD IDord-5ec8cc0a4b3a499190a7e0f2fb5bfc3c
Source noteuspto-grants-2007_11