Abstract: There is described herein antagonists of ?4?7 integrin, and more particularly to cyclic peptide antagonists. Accordingly, there is described herein a compound of formula (I) wherein R1, R2, R3, R4, R5, R6, R7 and R8 are various substituents; stereocentres 1*, 2* and 3* are each independently selected from R and S; n is 1, 2, 3, or 4 and where n is 2-4, Z is an amino terminus of an amino acid; —C?O— adjacent L is the carboxy terminus of an amino acid; and L along with Z and —C?O— is a peptide.

Abstract: There is described herein antagonists of ?4?7 integrin, and more particularly to cyclic peptide antagonists. Accordingly, there is described herein a compound of formula (I) wherein R1, R2, R3, R4, R5, R6, R7 and R8 are various substituents; stereocentres 1*, 2* and 3* are each independently selected from R and S; n is 1, 2, 3, or 4 and where n is 2-4, Z is an amino terminus of an amino acid; —C?O— adjacent L is the carboxy terminus of an amino acid; and L along with Z and —C?O— is a peptide.

Abstract: There is described herein use of a compound of formula (I) below to make cyclic peptides.

Abstract: There is described herein use of a compound of formula (I) below to make cyclic peptides.

Abstract: There is described herein use of a compound of formula (I) below to make cyclic peptides.

Abstract: There is described herein antagonists of ?4?7 integrin, and more particularly to cyclic peptide antagonists. Accordingly, there is described herein a compound of formula (I) wherein R1, R2, R3, R4, R5, R6, R7 and R8 are various substituents; stereocentres 1*, 2* and 3* are each independently selected from R and S; n is 1, 2, 3, or 4 and where n is 2-4, Z is an amino terminus of an amino acid; —C?O— adjacent L is the carboxy terminus of an amino acid; and L along with Z and —C?O— is a peptide.

Abstract: There is described herein use of a compound of formula (I) below to make cyclic peptides.

Abstract: Compounds of formula I: wherein R4, R6 and R7 are defined herein, are useful as inhibitors of HIV replication.

Abstract: Compounds of formula I: wherein R4, R6 and R7 are defined herein, are useful as inhibitors of HIV replication.

Abstract: Compounds of formula (I): wherein c, X, Y, R2, R4 and R5 are defined herein, are useful as inhibitors of HIV replication.

Abstract: Compounds of formula I: wherein R4, R6 and R7 are defined herein, are useful as inhibitors of HIV replication.

Abstract: Compounds of formula (I): wherein c, X, Y, R2, R4 and R5 are defined herein, are useful as inhibitors of HIV replication.

Abstract: An isomer, enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein: A is O, S, NR1, or CR1, wherein R1 is defined herein; represents either a single or a double bond; R2 is selected from: H, halogen, R21, OR21, SR21, COOR21, SO2N(R22)2, N(R22)2, CON(R22)2, NR22C(O)R22 or NR22C(O)NR22 wherein R21 and each R22 is defined herein; B is NR3 or CR3, with the proviso that one of A or B is either CR1 or CR3, wherein R3 is defined herein; K is N or CR4, wherein R4 is defined herein; L is N or CR5, wherein R5 has the same definition as R4; M is N or CR7, wherein R7 has the same definition as R4; Y1 is O or S; Z is N(R6a)R6 or OR6, wherein R6a is H or alkyl or NR61R62 wherein R61 and R62 are defined herein; and R6 is H, alkyl, cycloalkyl, alkenyl, Het, alkyl-aryl, alkyl-Het; or R6 is wherein R7 and R8 and Q are as defined herein; Y2 is O or S; R9 is H, (C1-6 alkyl), (C3-7)cycloalkyl or (C1-6)alkyl-(C3-7)cycloalkyl, aryl, Het, (C1-6)alkyl-aryl or (C1-6)alkyl-Het, all of which

Abstract: An isomer, enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein A, B, R2, R3, L, M1, M2, M3, M4, Y1, Y0, Z and Sp are as defined in claim 1, or a salt thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds of formula I: wherein R4, R6 and R7 are defined herein, are useful as inhibitors of HIV replication.

Abstract: An isomer, enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein A, B, R2, R3, M1, M2, M3, M4, Y1 and Z are as defined in claim 1, or a salt thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: An isomer, enantiomer, diastereoisomer, or tautomer of a compound, represented by formula I: wherein: A is O, S, NR1, or CR1, wherein R1 is defined herein; — represents either a single or a double bond; R2 is selected from: H, halogen, R21, OR21, SR21, COOR21, SO2N(R22)2, N(R22)2, CON(R22)2, NR22C(O)R22 or NR22C(O)NR22 wherein R21 and each R22 is defined herein; B is NR3 or CR3, with the proviso that one of A or B is either CR1 or CR3, wherein R3 is defined herein; K is N or CR4, wherein R4 is defined herein; L is N or CR5 wherein R5 has the same definition as R4 defined above; M is N or CR7, wherein R7 has the same definition as R4 defined above; Y1 is O or S; Z is N(R6a)R6 or OR6, wherein R6a is H or alkyl or NR61R62 wherein R61 and R62 are defined herein; a salt or a derivative thereof, as an inhibitor of HCV NS5B polymerase.

Abstract: Compounds of formula (I): wherein R1, R2, R3, R4, n and m are as defined herein. The compounds are useful as inhibitors of HCV NS3 protease.

Abstract: Racemates, diastereoisomers and optical isomers of a compound of formula (I): wherein B is H, a C6 or C10 aryl, C7-16 aralkyl; Het or (lower alkyl)-Het, all of which optionally substituted with C1-6 alkyl; C1-6 alkoxy; C1-6 alkanoyl; hydroxy; hydroxy-alkyl; halo; haloalkyl; nitro; cyano; cyanoalkyl; amino optionally substituted with C1-6 alkyl; amido; or (lower alkyl)amide; or B 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; R5 is H or C1-6 alkyl; and Y is H or C1-6 alkyl; R3 is C3-7 cycloalkyl, or C4-10 alkylcycloalkyl, all optionally substituted with hydroxy, C1-6 alkoxy, C1-6 thioalkyl, amido, (lower alkyl)amido, C6 or C10 aryl, or C7-16 aralkyl; R2 is CH2—R20, NH—R20, O—R20 or S—R20, wherein R20 is a saturated or unsaturated C3-7 cycloalkyl or C4-10 (alkylcycloalkyl), all of which being optionally mono-, di- or tri-substituted with R21, or R20 is a C6 or C10 aryl

Abstract: Racemates, diastereoisomers and optical isomers of a compound of formula (I): wherein B is H, a C6 or C10 aryl, C7-16 aralkyl; Het or (lower alkyl)-Het, all of which optionally substituted with C1-6 alkyl; C1-6 alkoxy; C1-6 alkanoyl; hydroxy; hydroxyalkyl; halo; haloalkyl; nitro; cyano; cyanoalkyl; amino optionally substituted with C1-6 alkyl; amido; or (lower alkyl)amide; or B 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; R5 is H or C1-6 alkyl; and Y is H or C1-6 alkyl; R3 is C1-8 alkyl, C3-7 cycloalkyl, or C4-10 alkylcycloalkyl, all optionally substituted with hydroxy, C1-6 alkoxy, C1-6 thioalkyl, amido, (lower alkyl)amido, C6 or C10 aryl, or C7-16 aralkyl; R2 is CH2—R20, NH—R20, O—R20 or S—R20, wherein R20 is a saturated or unsaturated C3-7 cycloalkyl or C4-10 (alkylcycloalkyl), all of which being optionally mono-, di- or tri-substituted with R21, or R20 is a C6