Title:
【発明の名称】置換ベンゾフラン誘導体の製造法
Document Type and Number:
Japanese Patent JPH06504042
Kind Code:
A
Abstract:
The present invention relates to a process for the preparation of a compound of the following formula (I) wherein one of R1 and R2 is hydrogen or halogen and the other is independently, an amino group or a C2-C4 alkanoyl amino group; R3 is hydrogen; a linear or branched alkyl, C1-C4 alkoxy or C2-C4 alkoxycarbonyl group; halogen; or phenyl unsubstituted or substituted by a C1-C4 alkyl group; A is a group -(CH2)n-Het wherein Het is an optionally substituted heteromonocyclic or heterobicyclic ring containing one or two nitrogen atoms and n is zero or an integer of 1 to 3; and the symbol .... represents a single or double bond and the pharmaceutically acceptable salts thereof. The compounds of the invention can be useful as 5HT3 receptor antagonists.
Inventors:
Bedeschi, Angie
Cabri, Bartel
Candeani, Ilaria
De Bernardineis, Sylvia
Marqui, marcelo
Cabri, Bartel
Candeani, Ilaria
De Bernardineis, Sylvia
Marqui, marcelo
Application Number:
JP50141691A
Publication Date:
May 12, 1994
Filing Date:
December 27, 1991
Export Citation:
Assignee:
Faria Talia Carlo Erba Etsuse Elle Elle
International Classes:
A61K31/343; C07D307/79; C07D307/83; C07D405/12; C07D451/04; C07D451/14; C07D307/84; C07D453/02; C07D453/06; C07D455/02; C07D471/08; A61K31/34; (IPC1-7): C07D405/12; C07D405/12; C07D451/14; C07D453/02; C07D453/06; C07D455/02; C07D471/08
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)