Process for the preparation of macrocyclic metalloprotease inhibitors
AssigneeDuPont Pharmaceuticals Company
InventorsRoberta L. Dorow, Silvio Campagna, Pasquale N. Confalone, Fuqiang Jin, Zhe Wang
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AssigneeDuPont Pharmaceuticals Company
InventorsRoberta L. Dorow, Silvio Campagna, Pasquale N. Confalone, Fuqiang Jin, Zhe Wang
Estimating the term…
The present invention is directed to a process for the preparation of a compound of formula (X-a): or a pharmaceutically acceptable salt form thereof, wherein: R1 is selected from the group consisting of: C1-5 alkyl substituted with 0-5 R1a, —(CH2)r—C3-10 cycloalkyl substituted with 0-5 R1a, and —(CH2)r-aryl substituted with 0-5 R1a. Compounds of Formula (X-a) are macrocyclic molecules containing anti-succinate residues which inhibit metalloproteinases such as aggrecanase, and the production of tumor necrosis factor (TNF). The anti-succinates are formed by an Ireland Claisen rearrangement of a silyl ketene acetal which proceeds with high stereoselectivity.
A process for the preparation of a compound of formula (VII):
A process for the preparation of a compound of formula (X-a):
A compound of formula (III):
A compound of formula (IV):
A compound of formula (IV-a):
A compound of formula (V):
A compound of formula (VII):
A compound of formula (IX-a):
Dependencies are inferred from the claim text.