AMINOTETRALONE DERIVATIVES AND PROCESS FOR PRODUCING THE SAME

Title:

AMINOTETRALONE DERIVATIVES AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/1996/026181

Kind Code:

A1

Abstract:

A process for producing a compound (4) according to the above reaction scheme (I), whereby aminotetralone derivatives useful as an intermediate for industrially producing camptothecin derivatives can be obtained readily in high yields, wherein R1 and R2 represent each H, halogeno, OH or C1-C6 alkyl; X and Y represent each a protected amino group; and n is 0 to 4.

Inventors:

KAMIHARA SHINJI (JP)
KANAI KAZUAKI (JP)
NOGUCHI SHIGERU (JP)

Application Number:

PCT/JP1996/000390

Publication Date:

August 29, 1996

Filing Date:

February 21, 1996

Export Citation:

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Assignee:

DAIICHI SEIYAKU CO (JP)
KABUSHIKIKAISHA YAKULT HONSHA (JP)
KAMIHARA SHINJI (JP)
KANAI KAZUAKI (JP)
NOGUCHI SHIGERU (JP)

International Classes:

C07C231/12; C07C233/41; C07D405/14; C07D491/22; (IPC1-7): C07C233/15; C07C233/41; C07C231/12; B01J23/44; B01J27/13

Foreign References:

JPH0559061A	1993-03-09
JPH0687746A	1994-03-29

Other References:

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNUCATIONS, Vol. 43, No. 12, (1978), O. EXNER et al., "Electrostatic Effects on Ionization Equilibriums. Carboxylic Acids and Amines Derived from 1-Indanone", pages 3227-3240.

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