US 6,147,231 AGranted

Process for producing 2(2-hydroxymethylphenyl)acetamide derivative and intermediate for the production thereof

AssigneeShionogi & Co., Ltd.

InventorsAkira Takase, Hiroyuki Kai, Takami Murashi

Life of this patent

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Abstract

A process for producing a compound of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are hydrogen or alkyl, and R is hydrogen or alkyl, which comprises removing the protective group (P) of hydroxyl of a compound of the formula (II): ##STR2## wherein P is a protective group of hydroxyl, .about. indicates an E-isomer, Z-isomer or a mixture thereof, and the other symbols are as defined above; and an intermediate for the production of the compound of the formula (I).

Claims4

Dependent claims

A compound of the formula (VI'):

##STR23## wherein L is a halogen atom or alkoxy, and P.sup.2 is aralkyl, trialkylsilyl, triaralkylsilyl, alkyldiarylsilyl, alkoxyalkyl, alkoxyalkoxyalkyl, alkylthioalkyl, tetrahydropyranyl, tetrahydrothiopyranyl, tetrahydrofuranyl, tetrahydrothiofuranyl or aralkyloxyalkyl.

Dependencies are inferred from the claim text.

Facts

Application: 09/174,256Filed 16 Oct 1998 · division
Priority: JP 6-32213026 Dec 1994
Granted: 14 Nov 2000
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

C07C 233/56
Having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms: having carbon atoms of carboxamide groups bound to…
C07C 69/738
Of unsaturated acids: esters of keto-carboxylic acids or aldehydo-carboxylic acids
C07C 249/08
Of oximes: by reaction of hydroxylamines with carbonyl compounds
C07C 249/12
Of oximes: by reactions not involving the formation of oxyimino groups

Family

Serial849,218Parent of this division
US 6,147,231 AThis patent

From the US filing history. Foreign family members aren’t listed.

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