US 2026/0217654 A1Published application

Process for preparing diphenylureido-dihalokynurenic acids and tosylate addition salts thereof

AssigneeLohocla Research Corporation

InventorsAnanya SENGUPTA, Sergiy Krasutsky, Scott Tweedie, Gurusankar Ramamoorthy

Life of this patent

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A crystalline compound having a formula of: wherein the TsOH is p-toluenesulfonic acid is disclosed.

Dependent claims

A crystalline compound having a formula of:

Dependencies are inferred from the claim text.

C07D 215/48
With hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals,…:…
A61K 31/4375
Ortho- or peri-condensed with heterocyclic ring systems: the heterocyclic ring system containing a six-membered ring having nitrogen as a ring…
C07D 215/46
Attached in position 4: with hydrocarbon radicals, substituted by nitrogen atoms, attached to said nitrogen atoms
C07D
Heterocyclic compounds

From the US filing history. Foreign family members aren’t listed.

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