Cyclic compounds
US-9828357-B2 · Nov 28, 2017 · US
Method for manufacturing neuraminic acid derivatives
US9303008B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9303008-B2 |
| Application number | US-201514724188-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 28, 2015 |
| Priority date | Apr 11, 2007 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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- Title
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Abstract
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A method of manufacturing a compound represented by the formula R 1 C(OR 7 ) 3 , wherein R 1 represents a C 1 -C 19 alkyl group and R 7 represents a C 1 -C 6 alkyl group by reacting a compound represented by the following formula (15): wherein R 1 represents a C 1 -C 19 alkyl group, R 7 represents a C 1 -C 6 alkyl group and X represents Cl, Br, I, HSO 4 or NO 3 , with a compound represented by the formula R 7 —OH, wherein R 7 represents a C 1 -C 6 alkyl group, in a solvent which forms a bilayer system.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of manufacturing a compound represented by the formula R 1 C(OR 7 ) 3 , wherein R 1 represents a C 1 -C 19 alkyl group and R 7 represents a C 1 -C 6 alkyl group, comprising: reacting a compound represented by the following formula (15): wherein R 1 represents a C 1 -C 19 alkyl group, R 7 represents a C 1 -C 6 alkyl group and X represents Cl, Br, I, HSO 4 or NO 3 , with a compound represented by the formula R 7 —OH, wherein R 7 represents a C 1 -C 6 alkyl group, in a solvent which forms a bilayer system. 2. The manufacturing method according to claim 1 , wherein the solvent which forms the bilayer system is cyclohexane or methylcyclohexane. 3. The manufacturing method according to claim 1 , wherein R 1 is a 1-heptyl group, R 7 is a methyl group and X is Cl. 4. The manufacturing method according to claim 3 , wherein R 1 is a 1-heptyl group, R 7 is a methyl group and X is Cl.
Assignees
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Classifications
linked by a carbon chain containing only aliphatic carbon atoms · CPC title
Ortho-condensed systems · CPC title
Preparation of compounds having [IMAGE cpc-sch-C07C-0959.gif] groups or[IMAGE cpc-sch-C07C-0960.gif] groups · CPC title
- C07D309/28Primary
with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms · CPC title
with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms · CPC title
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- What does patent US9303008B2 cover?
- A method of manufacturing a compound represented by the formula R 1 C(OR 7 ) 3 , wherein R 1 represents a C 1 -C 19 alkyl group and R 7 represents a C 1 -C 6 alkyl group by reacting a compound represented by the following formula (15): wherein R 1 represents a C 1 -C 19 alkyl group, R 7 represents a C 1 -C 6 alkyl group and X represents Cl, Br, I, HSO 4 or NO…
- Who is the assignee on this patent?
- Daiichi Sankyo Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07D309/28. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 05 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).