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US 2008/0177029 A1Published application
Process for preparing macrocyclic compounds
AssigneeBoehringer Ingelheim International GmbH
InventorsCarl Alan Busacca, Vittorio Farina, Fabrice Gallou, Nizar Haddad, Xiao-Jun Wang, Xudong Wei, Jinghua Xu, Yibo Xu, Nathan K. Yee, Li Zhang
Life of this patent
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Abstract
Disclosed is a multi-step process for preparing a macrocyclic compound of the formula (I): wherein Q is a radical of the following formula: and the other variables are as defined herein. The compounds of formula (I) are potent active agents for the treatment of hepatitis C virus (HCV) infection.
Claims13
A process for preparing a compound of the following formula (I):
- wherein Q is a substituent of the following formula:
- the olefin group attached to the cyclopropyl ring is in the configuration syn to the A group as represented by the following structure:
- W is N;
- L0 is selected from H, —OH, —OCH3 and —N(CH3)2;
- one of L1 and L2 is —CH3, —F, —Cl or —Br and the other of L1 and L2 is H, or both L1 and L2 are H;
- R2 is
- wherein R6 is NH—R7 or NH—C(O)—R7, wherein R7 is independently:
- C1-6 alkyl, or C3-6 cycloalkyl;
- R3 is NH—C(O)—OR10, wherein R10 is C1-6 alkyl, or C3-6 cycloalkyl;
- R4 is H or C1-6 alkyl;
- D is a 5-atom saturated alkylene chain;
- and
- A is a carboxylic acid or a pharmaceutically acceptable salt or ester thereof;
- said process comprising the step of cyclyzing a diene compound of formula (IX) in the presence of a suitable catalyst to obtain a compound of the formula (I):
- and when A is a protected carboxylic acid group, optionally subjecting the compound of formula (I) to deprotection (e.g., hydrolysis) conditions to obtain a compound of formula (I) wherein A is a carboxylic acid group;
- and when A is a carboxylic acid group in the resulting compound of formula (I), optionally coupling this compound with a sulfonamide of formula R11ASO2NH2 in the presence of a suitable coupling agent, such as TBTU or HATU, to obtain a compound of formula (I) wherein A is —C(O)—NH—SO2R11A.
13 more elements
A compound of the following formula (IV):
- wherein PG is an amino protecting group and Q is a substituent of the following formula:
- wherein:
- W is N;
- L0 is selected from H, —OH, —OCH3 and —N(CH3)2;
- one of L1 and L2 is —CH3, —F, —Cl or —Br and the other of L1 and L2 is H, or both L1 and L2 are H;
- and
- R2 is
- wherein R6 is NH—R7 or NH—C(O)—R7, wherein R7 is independently:
- C1-6 alkyl, or C3-6 cycloalkyl.
6 more elements
A compound of the following formula (IX):
- wherein Q is a substituent of the following formula:
- the olefin group attached to the cyclopropyl ring is in the configuration syn to the A group as represented by the following structure:
- W is N;
- L0 is selected from H, —OH, —OCH3 and —N(CH3)2;
- one of L1 and L2 is —CH3, —F, —Cl or —Br and the other of L1 and L2 is H, or both L1 and L2 are H;
- R2 is
- wherein R6 is NH—R7 or NH—C(O)—R7, wherein R7 is independently:
- C1-6 alkyl, or C3-6 cycloalkyl;
- R3 is NH—C(O)—OR10, wherein R10 is C1-6 alkyl, or C3-6 cycloalkyl;
- R4 is H or C1-6 alkyl;
- D is a 5-atom saturated alkylene chain;
- and
- A is a carboxylic acid or a pharmaceutically acceptable salt or ester thereof.
10 more elements
Dependencies are inferred from the claim text.