The Basic Patent Example family members:

CA 1268768; EP 247,633; JP 2019432; US 4681893

Example claim 1 (from the EP):

1. A compound of structural formula I EMI28.1 wherein X is -CH2-, -CH2CH2-, -CH2CH2CH2- or -CH2CH(CH3)-;

R1 is 1-naphthyl; 2-naphthyl; cyclohexyl; norbornenyl; 2-, 3-, or 4-pyridinyl; phenyl, phenyl substituted with fluorine, chlorine, bromine, hydroxyl; trifluoromethyl; alkyl of from one to four carbon atoms, alkoxy of from one to four carbon atoms, or alkanoyloxy of from two to eight carbon atoms: either of R2 or R3 is —CONR5R6

where R5 and R6 are independently hydrogen; alkyl of from one to six carbon atoms; 2-, 3-, or 4-pyridinyl; phenyl; phenyl substituted with fluorine, chlorine, bromine, cyano, trifluoromethyl, or carboalkoxy of from three to eight carbon atoms;

and the other of R2 or R3 is hydrogen; alkyl of from one to six carbon atoms; cyclopropyl; cyclobutyl, cyclopentyl, cyclohexyl; phenyl; or phenyl substituted with fluorine, chlorine, bromine, hydroxyl; trifluoromethyl; alkyl of from one to four carbon atoms, alkoxy of from one to four carbon atoms, or alkanoyloxy of from two to eight carbon atoms;

R4 is alkyl of from one to six carbon atoms; cyclopropyl; cyclobutyl; cyclopentyl; cyclohexyl; or trifluoromethyl;

or a hydroxy acid or pharmaceutically acceptable salts thereof, derived from the opening of the lactone ring of the compounds of structural formula I above.

The Enantiomer Patent

Example family members:

CA 2021546, EP 409,281, JP3506336, US 5273995,

Example claim 1 (from the EP):

Example claim 1 (from the EP):

[R-(R*,R*)]-2-(4-fluorophenyl)- beta , delta -dihydroxy-5-((1-methylethyl)-3-phenyl-4-

[(phenylamino)-carbonyl]-1H-pyrrole-1-heptanoic acid or (2R-trans)-5-(4-fluorophenyl)-2

-(1-methylethyl-N,4-diphenyl-1-[2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)ethyl]

-1H-p yrrole-3-carboxamide; and pharmaceutically acceptable salts thereof.

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