Tri-aryl compounds/what is this

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Ri is nothing, alkoxy, OCH2COOEt or halogen

R2 and R3 are independently hydrogen, alkyl, alkoxy, hydroxyl, or OCH2COOAIk; and

R4 and R5 are hydrogens or form together a saturated or unsaturated of 5-7 carbocyclic ring; or- its isomer, salt, hydrate, N-oxide, crystal or any combination thereof; and a carrier, diluents, or any combination thereof
 
proculation? says rubbish.

Aryl is one benzene ring attached to something with one covalent bond (called phenyl alcohol= phenol), biaryl- is 2, triaryl- is 3, etc.
These aromatic rings can be fused rings...anthracene has fused rings
 
The patent defines the aryl group as:

[0048] An "aryl" group refers, in another embodiment, to an aromatic group having at least one carbocyclic aromatic group or heterocyclic aromatic group, which may be unsubstituted or substituted by one or more groups selected from halogen, haloalkyl, hydroxy, alkoxy, carbonyl, amido, alkylamido, dialkylamido, nitro, cyano, amino, monoalkylamino, dialkylamino, carboxy or thio or thioalkyl. In another embodiment, the aryl group is between 4-12 membered ring(s). In another embodiment, the aryl group is between 6-18 membered ring(s). In another embodiment, the aryl group is between 4-8 membered ring(s). In another embodiment, the aryl group is a 6 membered ring. In another embodiment, the aryl group is a fused ring system comprising of between 2-3 rings. Nonlimiting examples of aryl rings are phenyl, naphthyl, pyranyl, pyrrolyl, pyrazinyl, pyrimidinyl, pyrazolyl, pyridinyl, furanyl, thiophenyl, thiazolyl, imidazolyl, isoxazolyl, and the like.

In this patent application the structure is shown in the orginal document but not in this on line summary. To wit:

006] In one embodiment, this invention provides a compound represented by the structure represented by formula I:


wherein... etc...

You probably have to pay to play, eh?