发明授权
EP0946531B1 PROCESS FOR THE PREPARATION OF THIAZOLE DERIVATIVES 失效
用于生产THIAZOLEDERIVATEN

PROCESS FOR THE PREPARATION OF THIAZOLE DERIVATIVES
摘要:
The invention relates to a process for the preparation of a compound of formula (I), wherein Q, Y, Z, R1, R2, R3, R4 and R5 are as defined in the specification, which comprises a) reacting a compound of formula (II), with a halogenating agent to form a compound of formula (III), or b) converting a compound of formula (II) by means of a halogenating agent into a compound of formula (IV); optionally c) converting the compound of formula (IV) into a compound of formula (III); d) converting a compound of formula (III) by means of a compound of formula (V) into a compound of formula (VI); or e) converting a compound (IV) by means of a compound (V) into a compound (VI); and f) converting a compound (VI) by means of a chlorinating agent into a compound (I); a compound (IV); to a process for the preparation of a compound (III) and to a process for the preparation of a compound (IV).
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