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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45761Generated: October 25, 2026

Terephthalic Acid → N1,N4-bis(2-(2-(2-(3-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenylsulfonamido)ethoxy)ethoxy)ethyl)terephthalamide

https://huagongshe.com/reaction/45761

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTerephthalic AcidHCID 7489—
ReactantN-(2-(2-(2-aminoethoxy)ethoxy)ethyl)-3-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)benzenesulfonamideHCID 67458027—
ProductN1,N4-bis(2-(2-(2-(3-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)phenylsulfonamido)ethoxy)ethoxy)ethyl)terephthalamideHCID 8667237263.5%

Reaction Steps

Compound 234 was prepared following the procedures outlined in Example 215 using terephthalic acid (13.8 mg, 0.0833 mmol) and N-(2-(2-(2-aminoethoxy)ethoxy)ethyl)-3-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)benzenesulfonamide (Compound 168.2, 121.7 mg, 0.167 mmol). Purification by preparative HPLC gave the title compound (60.0 mg) as a TFA salt. 1H-NMR (400 MHz, CD3OD): δ 7.88 (m, 6H), 7.72 (s, 2H), 7.61 (t, 2H), 7.51 (m, 4H), 6.80 (s, 2H), 4.88-4.75 (m, 4H), 4.75 (d, 2H), 4.74 (m, 2H), 3.85-3.42 (m, 25H), 3.12 (s, 6H), 2.99 (t, 4H). MS (m/z): 1135.11 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541448B2
Source datasetuspto-grants-2013_09
ORD IDord-d0783cb48fac4a928f95d82f3691c701
Source noteuspto-grants-2013_09