You’re using a public version of DrugPatentWatch with 5 free searches available | Register to unlock more free searches. CREATE FREE ACCOUNT

Last Updated: April 25, 2024

Details for Patent: 6,951,938


✉ Email this page to a colleague

« Back to Dashboard


Title: Aryl fused azapolycyclic compounds
Abstract:Pharmaceutical compositions comprising compounds of the formula ##STR1## and their pharmaceutically acceptable salts, wherein R.sup.1, R.sup.2, and R.sup.3 are defined as in the specification, in combination with another therapeutic agent and methods of using such combinations in the treatment of neurological and psychological disorders.
Inventor(s): Coe; Jotham Wadsworth (Niantic, CT), Brooks; Paige Roanne Palmer (North Stonington, CT)
Assignee: Pfizer Inc. (New York, NY)
Filing Date:Apr 22, 2002
Application Number:10/127,267
Claims:1. A compound of the formula ##STR26## wherein P is hydrogen, methyl, COOR.sup.16 wherein R.sup.16 is (C.sub.1 -C.sub.6)alkyl, allyl or 2,2,2-trichloroethyl; --C(.dbd.O)NR.sup.5 R.sup.6 ; --C(.dbd.O)H, --C(.dbd.O)(C.sub.1 -C.sub.6)alkyl wherein the alkyl moiety may optionally be substituted with from 1 to 3 halo atoms; --COOCH.sub.2 C.sub.6 H.sub.5, benzyl, t-butoxycarbonyl (t-Boc) or trifluoroacetyl, wherein R.sup.5 and R.sup.6 are each selected, independently, from hydrogen and (C.sub.1 -C.sub.6) alkyl, or R.sup.5 and R.sup.6 together with the nitrogen to which they are attached, form a pyrrolidine, piperidine, morpholine, azetidine, piperazine, N--(C.sub.1 -C.sub.6)alkylpiperazine or thiomorpholine ring, or a thiomorpholine wherein the ring sulfur is replaced with a sulfoxide or sulfone; and R.sup.14 and R.sup.15 are each amino.

2. A compound according to claim 1 wherein P is selected from the group consisting of --COCF.sub.3, --COCCl.sub.3, --COOCH.sub.2 CCl.sub.3, --COO(C.sub.1 -C.sub.6)alkyl and --COOCH.sub.2 C.sub.6 H.sub.5.

3. A compound according to claim 1 wherein P is t-butoxycarbonyl (t-Boc) or trifluoroacetyl.

4. A compound according to claim 1 wherein P is t-butoxycarbonyl (t-Boc).

5. A compound according to claim 1 wherein P is trifluoroacetyl.

6. A process for preparing a compound of formula IC ##STR27##

wherein R.sup.10 and R.sup.17 are selected, independently, from hydrogen; (C.sub.1 -C.sub.6)alkyl; phenyl and monocyclic heteroaryl. wherein said heteroaryl is selected from five to seven membered aromatic rings containing from one to four heteroatoms selected from oxygen, nitrogen and sulfur, comprising the steps of (i) allowing a compound according to claim 1 to react with a compound of formula ##STR28## or a compound of the formula ##STR29##

wherein R.sup.10 and R.sup.17 are defined as above; and (ii) removing the protecting group P.

7. The process according to claim 6 wherein P is selected from the group consisting of --COCF.sub.3, --COCCl.sub.3, --COOCH.sub.2 CCl.sub.3, --COO(C.sub.1 -C.sub.6)alkyl and --COOCH.sub.2 C.sub.6 H.sub.5.

8. A process according to claim 6 wherein P is t-butoxycarbonyl (t-Boc).

9. A process according to claim 6 wherein P is trifluoroacetyl.

10. A process according to claim 6 wherein R.sup.10 and R.sup.17 are selected, independently, from hydrogen or (C.sub.1 -C.sub.6)alkyl.

11. A process according to claim 6 wherein R.sup.10 and R.sup.17 are each hydrogen.

12. A process according to claim 6 comprising the prior step of reducing a compound of the formula ##STR30##

wherein P is hydrogen; methyl; COOR.sup.16 wherein R.sup.16 is (C.sub.1 -C.sub.6)alkyl; --C(.dbd.O)NR.sup.5 R.sup.6 ; --C(.dbd.O)H; --C(.dbd.O)(C.sub.1 -C.sub.6)alkyl wherein the alkyl moiety may optionally be substituted with from 1 to 3 halo atoms; t-butoxycarbonyl (t-Boc); or trifluoroacetyl; and R.sup.14 and R.sup.15 are each nitro; with a reducing agent.

13. A process according to claim 12 wherein the reducing step is conducted in the presence of hydrogen gas and a catalyst.

14. A process according to claim 12 wherein the reducing step is conducted in the presence of hydrogen gas and a palladium hydrogenation catalyst.

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.