Process for the preparation of cycloheptapyridine cgrp receptor antagonists
US-2015099887-A1 · Apr 9, 2015 · US
Process for the preparation of cycloheptapyridine CGRP receptor antagonists
US9718845B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9718845-B2 |
| Application number | US-201615225261-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 1, 2016 |
| Priority date | Oct 12, 2010 |
| Publication date | Aug 1, 2017 |
| Grant date | Aug 1, 2017 |
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- Title
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Abstract
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The disclosure generally relates to a process for the preparation of compounds of formula I, including synthetic intermediates which are useful in the process.
First claim
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We claim: 1. A compound of formula II, or a salt thereof, where Ar 1 is phenyl substituted with 0-3 substituents selected from the group consisting of cyano, halo, alkyl, haloalkyl, alkoxy, haloalkoxy, and alkylSO 2 and R 1 is hydrogen or trialkylsilyl, alkoxy, alkylcarbonyl, benzyl, benzoyl, and pivaloyl 2. The compound of claim 1 where Ar 1 is 2,3-difluorophenyl. 3. The compound of claim 2 which is the dihydrochloride salt. 4. The compound of claim 1 where R 1 is triisopropylsilyl. 5. The compound of claim 4 which is the dihydrochloride salt. 6. The compound of claim 1 where R 1 is hydrogen. 7. The compound of claim 6 which is the dihydrochloride salt. 8. A compound of formula II, or a salt thereof, having the following formula: 9. The compound of claim 8 which is the dihydrochloride salt.
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- C07D471/04Primary
Ortho-condensed systems · CPC title
Chemistry & Metallurgy · mapped topic
- C07F7/1856Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Ortho- or peri-condensed ring systems · CPC title
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- What does patent US9718845B2 cover?
- The disclosure generally relates to a process for the preparation of compounds of formula I, including synthetic intermediates which are useful in the process.
- Who is the assignee on this patent?
- Bristol Myers Squibb Co
- What technology area does this patent fall under?
- Primary CPC classification C07D471/04. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 01 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).