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Chinese Patent Office
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Federal Trade Commission
Baxter
Citi
Johnson and Johnson
US Army
McKesson
Merck

Generated: May 20, 2018

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Details for Patent: 5,270,315

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Title: 4-(purinyl bases)-substituted-1,3-dioxlanes
Abstract:There is provided novel 2-substituted-4-substituted-1,3-dioxolanes which are particularly useful as antiviral agents.
Inventor(s): Belleau; Bernard (Westmont, CA), Dixit; Dilip (Montreal, CA), Nguyen-Ba; Nghe (Brossard, CA)
Assignee: BioChem Pharma Inc. (Laval, CA)
Filing Date:Mar 07, 1991
Application Number:07/666,045
Claims:1. A 1,3-dioxolane derivative of the general formula (L), the geometric and optical isomers thereof and mixtures of those isomers: ##STR11## wherein: R.sub.1 is selected from the group consisting of hydrogen, an aliphatic acyl group having 2 to 16 carbon atoms, benzoyl and a benzoyl substituted in any position by a halogen, a lower alkyl, lower alkoxy, a nitro or a trifluoromethyl group;

R.sub.2 is a heterocyclic radical selected from: ##STR12## wherein R.sub.3 is selected from the group consisting of hydrogen and lower alkyl radicals having from 1 to 3 carbon atoms;

R.sub.4 is selected from the group consisting of hydrogen and lower alkyl or alkenyl radicals having from 1 to 3 carbon atoms; and

R.sub.5 is selected from the group consisting of lower alkyl or alkenyl radicals having from 1 to 3 carbon atoms, fluoro and iodo.

2. The compound of claim 1 which is the 2-benzoyloxymethyl-4-(adenin-9'-yl)-1,3-dioxolane.

3. The compound of claim 1 which is the 2-hydroxymethyl-4-(adenin-9'-yl)-1,3-dioxolane.

4. The compound of claim 1 which is the 2-benzoyloxymethyl-4-(2'-amino-6'-chloro-(purin-9'-yl)-1,3-dioxolane.

5. The compound of claim 1 which is the 2-hydroxymethyl-4-(2'-amino-6'-chloro-(purin-9'-yl)-1,3-dioxolane.

6. The compound of claim 1 which is the 2-hydroxymethyl-4-(2'-amino-purin-9'-yl)-1,3-dioxolane.

7. The compound of claim 1 which is the 2-hydroxymethyl-4-(2',6'-diamino-purin-9'-yl)-1,3-dioxolane.

8. The compound of claim 1 which is the 2-hydroxymethyl-4-(guanin-9'-yl)-1,3-dioxolane.

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Serving hundreds of leading biopharmaceutical companies globally:

Merck
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AstraZeneca
Fuji
Accenture
Cipla
Teva
Argus Health

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