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1. US5179104 - Process for the preparation of enantiomerically pure .beta.-D-(-)-dioxolane-nucleosides

Office United States of America
Application Number 07622762
Application Date 05.12.1990
Publication Number 5179104
Publication Date 12.01.1993
Grant Number 5179104
Grant Date 12.01.1993
Publication Kind A
IPC
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
473
Heterocyclic compounds containing purine ring systems
02
with oxygen, sulfur, or nitrogen atoms directly attached in positions 2 and 6
18
one oxygen and one nitrogen atom, e.g. guanine
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
495
having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
505
Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
495
having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
505
Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
506
not condensed and containing further heterocyclic rings
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
495
having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
505
Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
513
having oxo groups directly attached to the heterocyclic ring, e.g. cytosine
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
495
having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
505
Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
519
ortho- or peri-condensed with heterocyclic rings
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
495
having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
505
Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
519
ortho- or peri-condensed with heterocyclic rings
52
Purines, e.g. adenine
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
495
having six-membered rings with two nitrogen atoms as the only ring hetero atoms, e.g. piperazine
505
Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
519
ortho- or peri-condensed with heterocyclic rings
52
Purines, e.g. adenine
522
having oxo groups directly attached to the heterocyclic ring, e.g. hypoxanthine, guanine, acyclovir
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
33
Heterocyclic compounds
395
having nitrogen as a ring hetero atom, e.g. guanethidine, rifamycins
53
having six-membered rings with three nitrogens as the only ring hetero atoms, e.g. chlorazanil, melamine
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
66
Phosphorus compounds
675
having nitrogen as a ring hetero atom, e.g. pyridoxal phosphate
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
70
Carbohydrates; Sugars; Derivatives thereof
7042
Compounds having saccharide radicals and heterocyclic rings
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
70
Carbohydrates; Sugars; Derivatives thereof
7042
Compounds having saccharide radicals and heterocyclic rings
7052
having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides
706
containing six-membered rings with nitrogen as a ring hetero atom
7064
containing condensed or non-condensed pyrimidines
7076
containing purines, e.g. adenosine, adenylic acid
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
P
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
31
Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
P
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
31
Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
12
Antivirals
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
P
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
31
Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
12
Antivirals
14
for RNA viruses
18
for HIV
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
P
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
37
Drugs for immunological or allergic disorders
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
P
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
37
Drugs for immunological or allergic disorders
02
Immunomodulators
04
Immunostimulants
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
327
Heterocyclic compounds containing rings having oxygen and sulfur atoms as the only ring hetero atoms
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
327
Heterocyclic compounds containing rings having oxygen and sulfur atoms as the only ring hetero atoms
02
one oxygen atom and one sulfur atom
04
Five-membered rings
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
405
Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
405
Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
02
containing two hetero rings
04
directly linked by a ring-member-to-ring- member bond
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
411
Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen and sulfur atoms as the only ring hetero atoms
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
411
Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen and sulfur atoms as the only ring hetero atoms
02
containing two hetero rings
04
directly linked by a ring-member-to-ring- member bond
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
473
Heterocyclic compounds containing purine ring systems
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
473
Heterocyclic compounds containing purine ring systems
26
with an oxygen, sulfur, or nitrogen atom directly attached in position 2 or 6, but not in both
28
Oxygen atom
30
attached in position 6, e.g. hypoxanthine
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
473
Heterocyclic compounds containing purine ring systems
26
with an oxygen, sulfur, or nitrogen atom directly attached in position 2 or 6, but not in both
32
Nitrogen atom
34
attached in position 6, e.g. adenine
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
473
Heterocyclic compounds containing purine ring systems
40
with halogen atoms or perhalogeno-alkyl radicals directly attached in position 2 or 6
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
497
Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
497
Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms
02
in which the condensed system contains two hetero rings
08
Bridged systems
C07D 473/18
A61K 31/505
A61K 31/506
A61K 31/513
A61K 31/519
A61K 31/52
CPC
A61K 31/675
C07D 405/04
Applicants University of Georgia Research Foundation, Inc.
Inventors Chu Chung K.
Schinazi Raymond F.
Agents Kilpatrick & Cody
Title
(EN) Process for the preparation of enantiomerically pure .beta.-D-(-)-dioxolane-nucleosides
Abstract
(EN)

An asymmetric process for the preparation of enantiomerically pure .beta.-D-(-)-dioxolane-nucleosides. The enantiomerically pure dioxolane nucleosides are active HIV agents, that are significantly more effective than the prior prepared racemic mixtures of the nucleosides. The anti-viral activity of the compounds is surprising in light of the generally accepted theory that moieties in the endo conformation, including these dioxolanes, are not effective antiviral agents. The toxicity of the enantiomerically pure dioxolane nucleosides is lower that that of the racemic mixture of the nucleosides, because the nonnaturally occurring .alpha.-isomer is not included. PAL The product can be used as a research tool to study the inhibition of HIV in vitro or can be administered in a pharmaceutical composition to inhibit the growth of HIV in vivo. -GOVT PAR The government has rights in this invention by virtue of grants from the Public Health Service of the National Institute of Allergy and Infectious Diseases, and the Department of Veteran's Affairs that partially funded research leading to this invention.