Hepatitis C inhibitor tri-peptides

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reissue Patent

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C514S259500, C514S260100, C514S266400, C514S269000, C514S273000, C544S242000, C544S283000, C544S287000, C544S298000, C544S304000

Reissue Patent

active

RE041894

ABSTRACT:
Racemates, diastereoisomers and optical isomers of a compound of formula (I):whereinB is H, a C6or C10aryl, C7-16aralkyl; Het or (lower alkyl)-Het, all of which optionally substituted with C1-6alkyl; C1-6alkoxy; C1-6alkanoyl; hydroxy; hydroxy-alkyl; halo; haloalkyl; nitro; cyano; cyanoalkyl; amino optionally substituted with C1-6alkyl; amido; or (lower alkyl)amide; orB is an acyl derivative of formula R4—C(O)—; a carboxyl of formula R4—O—C(O)—; an amide of formula R4—N(R5)—C(O)—; a thioamide of formula R4—N(R5)—C(S)—; or a sulfonyl of formula R4—SO2; R5is H or C1-6alkyl; andY is H or C1-6alkyl;R3is C3-7cycloalkyl, or C4-10alkylcycloalkyl, all optionally substituted with hydroxy, C1-6alkoxy, C1-6thioalkyl, amido, (lower alkyl)amido, C6or C10aryl, or C7-16aralkyl;R2is CH2—R20, NH—R20, O—R20or S—R20, wherein R20is a saturated or unsaturated C3-7cycloalkyl or C4-10(alkylcycloalkyl), all of which being optionally mono-, di- or tri-substituted with R21,or R20is a C6or C10aryl or C7-14aralkyl optionally substituted, or R20is Het or (lower alkyl)-Het, both optionally substituted, Het or (lower alkyl)-Het; carboxyl; carboxy(lower alkyl); C6or C10aryl, C7-14aralkyl or Het, said aryl, aralkyl or Het being optionally substituted; andR1is H; C1-6alkyl, C3-7cycloalkyl, C2-6alkenyl, or C2-6alkynyl, all optionally substituted with halogen; or a pharmaceutically acceptable salt or ester thereof.

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