AU1543797A - Process for preparing purine derivatives - Google Patents
Process for preparing purine derivativesInfo
- Publication number
- AU1543797A AU1543797A AU15437/97A AU1543797A AU1543797A AU 1543797 A AU1543797 A AU 1543797A AU 15437/97 A AU15437/97 A AU 15437/97A AU 1543797 A AU1543797 A AU 1543797A AU 1543797 A AU1543797 A AU 1543797A
- Authority
- AU
- Australia
- Prior art keywords
- preparing
- purine derivatives
- intermediates
- preparing purine
- purin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
- C07D473/02—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6
- C07D473/18—Heterocyclic compounds containing purine ring systems with oxygen, sulphur, or nitrogen atoms directly attached in positions 2 and 6 one oxygen and one nitrogen atom, e.g. guanine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D473/00—Heterocyclic compounds containing purine ring systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
- A61K31/52—Purines, e.g. adenine
Abstract
Process and novel intermediates for preparing the L-monovaline ester of 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)methoxy-1,3-propanediol and its pharmaceutically acceptable salts. The present process and intermediates provide for reduced impurities in the mono-valine ester end-product, also eliminating the costly and time consuming purification step and allowing the use of starting materials of lower purity, which, in turn, reduces overall production costs. These products are of value as antiviral agents with improved absorption.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US59207996A | 1996-01-26 | 1996-01-26 | |
US592079 | 1996-01-26 | ||
PCT/EP1997/000262 WO1997027198A1 (en) | 1996-01-26 | 1997-01-21 | Process for preparing purine derivatives |
Publications (1)
Publication Number | Publication Date |
---|---|
AU1543797A true AU1543797A (en) | 1997-08-20 |
Family
ID=24369197
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU15437/97A Abandoned AU1543797A (en) | 1996-01-26 | 1997-01-21 | Process for preparing purine derivatives |
Country Status (10)
Country | Link |
---|---|
JP (1) | JP4094667B2 (en) |
KR (1) | KR100491941B1 (en) |
CN (1) | CN1064683C (en) |
AT (1) | ATE222909T1 (en) |
AU (1) | AU1543797A (en) |
CA (1) | CA2243650C (en) |
DE (1) | DE69714971T3 (en) |
ES (1) | ES2180923T5 (en) |
MX (1) | MX9805935A (en) |
WO (1) | WO1997027198A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6703394B2 (en) | 1996-02-16 | 2004-03-09 | Medivir Ab | Acyclic nucleoside derivatives |
US5869493A (en) | 1996-02-16 | 1999-02-09 | Medivir Ab | Acyclic nucleoside derivatives |
CA2537849A1 (en) * | 2003-09-11 | 2005-03-17 | F. Hoffmann-La Roche Ag | Process for preparing antiviral nucleoside derivatives |
ZA200702234B (en) * | 2006-03-21 | 2008-07-30 | Cipla Ltd | Preparation of ester of purine derivatives |
EP2714691B1 (en) * | 2011-05-31 | 2016-09-07 | Pharmathen S.A. | Process for the preparation of 2-amino-9-((2-phenyl-1,3-dioxan-5-yloxy)methyl)-1h-purin-6(9h)-one compound useful in the preparation of valganciclovir |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4816447A (en) * | 1981-08-26 | 1989-03-28 | Merck & Co., Inc. | Anti-viral guanine compounds |
NL8202626A (en) * | 1982-06-29 | 1984-01-16 | Stichting Rega V Z W | DERIVATIVES OF 9- (2-HYDROXYETHOXYMETHYL) GUANINE. |
AP55A (en) * | 1987-08-15 | 1989-09-26 | The Wellcome Foundation Ltd | Therapeutic Acyclic Nucleosides |
CA2005815C (en) * | 1988-12-19 | 1999-08-03 | Wellcome Foundation Limited (The) | Antiviral acyclic nucleoside derivatives |
JP3225545B2 (en) * | 1991-09-18 | 2001-11-05 | 味の素株式会社 | Method for producing acyclic nucleosides |
PE32296A1 (en) * | 1994-07-28 | 1996-08-07 | Hoffmann La Roche | L-MONOVALINE ESTER DERIVED FROM 2- (2-AMINO-1,6-DIHYDRO-6-OXO-PURIN-9-IL) METOXI-1,3-PROPANDIOL AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS |
-
1997
- 1997-01-21 WO PCT/EP1997/000262 patent/WO1997027198A1/en active IP Right Grant
- 1997-01-21 CN CN97192606A patent/CN1064683C/en not_active Expired - Lifetime
- 1997-01-21 AT AT97901569T patent/ATE222909T1/en active
- 1997-01-21 JP JP52651797A patent/JP4094667B2/en not_active Expired - Lifetime
- 1997-01-21 KR KR10-1998-0705709A patent/KR100491941B1/en not_active IP Right Cessation
- 1997-01-21 ES ES97901569T patent/ES2180923T5/en not_active Expired - Lifetime
- 1997-01-21 CA CA002243650A patent/CA2243650C/en not_active Expired - Lifetime
- 1997-01-21 AU AU15437/97A patent/AU1543797A/en not_active Abandoned
- 1997-01-21 DE DE69714971T patent/DE69714971T3/en not_active Expired - Lifetime
-
1998
- 1998-07-23 MX MX9805935A patent/MX9805935A/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR100491941B1 (en) | 2005-08-05 |
DE69714971D1 (en) | 2002-10-02 |
CA2243650C (en) | 2006-08-15 |
DE69714971T3 (en) | 2005-12-15 |
ES2180923T5 (en) | 2005-10-16 |
CN1064683C (en) | 2001-04-18 |
JP4094667B2 (en) | 2008-06-04 |
MX9805935A (en) | 1998-11-30 |
ATE222909T1 (en) | 2002-09-15 |
ES2180923T3 (en) | 2003-02-16 |
JP2000503977A (en) | 2000-04-04 |
CN1212693A (en) | 1999-03-31 |
CA2243650A1 (en) | 1997-07-31 |
DE69714971T2 (en) | 2003-05-28 |
KR19990081991A (en) | 1999-11-15 |
WO1997027198A1 (en) | 1997-07-31 |
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