Process for preparing intermediates

Disclosed is a process for preparing a compound of the formula (VIII) wherein: Y is a hydroxy protecting group; Each of R2, R3, R4 and R5, independently is H or an aliphatic group, or R2 and R3 and/or R4 and R5 collectively form a cycloalkyl; X is -CH2-, -S-, -CH(OH)-, -CH(OR)-, -CH(SH)-, -CH(SR)-,...

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Bibliographic Details
Main Authors KAPA, PRASAD KOTESWARA, PRASHAD, MAHAVIR, LEE, GEORGE TEIN-SAN, LOESER, ERIC M, SLADE, JOEL, JIANG, XINGLONG
Format Patent
LanguageEnglish
Published 30.05.2008
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:Disclosed is a process for preparing a compound of the formula (VIII) wherein: Y is a hydroxy protecting group; Each of R2, R3, R4 and R5, independently is H or an aliphatic group, or R2 and R3 and/or R4 and R5 collectively form a cycloalkyl; X is -CH2-, -S-, -CH(OH)-, -CH(OR)-, -CH(SH)-, -CH(SR)-, -CF2-, -C=N(OR)- or -CH(F)-; G is -OH or OM wherein M is a metal or an ammonium moiety; R1 is aryl or heteroaryl; X' is halo; R' is alkyl or aryl; and n is 0-3 and the process is as defined in the specification.
Bibliography:Application Number: NZ20030538833