WO2002059084A2 - Inhibitors of adp-ribosyl transferases, cyclases, and hydrolases, and uses thereof - Google Patents
Inhibitors of adp-ribosyl transferases, cyclases, and hydrolases, and uses thereof Download PDFInfo
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- WO2002059084A2 WO2002059084A2 PCT/US2002/000371 US0200371W WO02059084A2 WO 2002059084 A2 WO2002059084 A2 WO 2002059084A2 US 0200371 W US0200371 W US 0200371W WO 02059084 A2 WO02059084 A2 WO 02059084A2
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- 0 O=C(c(cc1)ccc1Cl)OC(C1)C(CO*(c(cc2)ccc2Cl)=O)OC1Cl Chemical compound O=C(c(cc1)ccc1Cl)OC(C1)C(CO*(c(cc2)ccc2Cl)=O)OC1Cl 0.000 description 2
- RKZJFYUCFZYULR-NSCUHMNNSA-N C[NH+](/C=C/C(N)=O)[NH-] Chemical compound C[NH+](/C=C/C(N)=O)[NH-] RKZJFYUCFZYULR-NSCUHMNNSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—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
- C07D405/02—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 containing two hetero rings
- C07D405/04—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 containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/18—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members 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
- C07D307/20—Oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/06—Pyrimidine radicals
- C07H19/10—Pyrimidine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H19/00—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof
- C07H19/02—Compounds containing a hetero ring sharing one ring hetero atom with a saccharide radical; Nucleosides; Mononucleotides; Anhydro-derivatives thereof sharing nitrogen
- C07H19/04—Heterocyclic radicals containing only nitrogen atoms as ring hetero atom
- C07H19/16—Purine radicals
- C07H19/20—Purine radicals with the saccharide radical esterified by phosphoric or polyphosphoric acids
Definitions
- Human cyclic ADP-ribose synthetase (CD38) is an ectoenzyme, expressed on the surface of ⁇ cells, that makes cyclic-adenosine-diphosphate- ribose (cADPR) and ADP-ribose from nicotinamide-diphosphate-ribose (oxidized form) (NAD + ). Nicotinamide guanine dinucleotide (NGD + ) is also cyclized by CD38 to form cGDPR, and hydrolyzed to form GDPR.
- the compound cADPR is formed by intramolecular ADP- ribosylation at the Nl position of the adenine ring (5), and is a potent agent for calcium-ion (Ca 2+ ) release from intracellular Ca 2+ stores (1, 7, 38-44).
- CD38 and cADPR have been implicated in the regulation of cellular processes, including insulin release (9), lymphocyte activation (2, 10), bone homeostasis (45), and synaptic plasticity (6).
- the presence of CD38 has been linked to cytokine-induced differentiation (1), cell adhesion (1), and signal transduction (37).
- angina e.g., angina pectoris, chronic stable angina, and vasospastic angina
- arrhythmias arrhythmias
- atrial fibrillation hypertension
- paroxysmal supra ventricular tachycardia adrenoleukodystrophy
- ALD adrenoleukodystrophy
- MS multiple sclerosis
- Small-molecule, mechanism-based inhibitors of specific signaling pathways are desirable for therapeutic use. Unlike most conventional drugs, which temporarily inhibit the target enzyme, many mechanism-based inhibitors permanently disable the target enzyme. Small molecules that inhibit CD38 would be expected to decrease levels of cADPR, resulting in a modification in intracellular levels of Ca 2+ . In particular, inhibition of cADPR-stimulated Ca 2+ release would be expected to have significant effects on calcium-mediated signaling pathways in many cells and tissues, thereby providing a useful treatment option for pathologies in which Ca 2+ regulation is implicated. However, prior to the present invention, there were no known effective, small- molecule, mechanism-based inhibitors of CD38 having the potential for regulation of cADPR levels.
- the present invention is based upon the design and synthesis of a novel class of small-molecule, mechanism-based inhibitors of human CD38 that accomplish mechanism-based trapping at the enzyme's catalytic site. These inhibitors and their analogues provide new tools for investigating biological pathways in which CD38 and related enzymes are involved, and offer new therapeutic options for treating diseases and conditions associated with CD38, related enzymes, and cADPR. Accordingly, it is an object of the present invention to provide pharmaceuticals that are effective inhibitors of ADP-ribosyl cyclases, transferases, and hydrolases. [0007] It is also an object of the present invention to provide compounds having the form la:
- A is chosen from a nitrogen- , oxygen- , or sulfur-linked aryl, alkyl, cyclic, or heterocyclic group; both B and C are hydrogen, of either B or C is a halogen, amino, or thiol group and the other of B or C is hydrogen; and D is a primary alcohol, a hydrogen, or an oxygen, nitrogen, carbon, or sulfur linked to phosphate, a phosphoryl group, a pyrophosphoryl group, or adenosine monophosphate through a phosphodiester or carbon- , nitrogen- , or sulfur- substituted phosphodiester bridge, or to adenosine diphosphate through a phosphodiester or carbon- , nitrogen- , or sulfur-substituted pyrophosphodiester bridge.
- Figure 2 depicts the synthesis of 3.5-b ⁇ s-parachlorobenzoyl-
- Figure 3 illustrates the synthesis of pyridyl-substituted derivatives of deoxyribose.
- R CONH 2 ;
- R H.
- Figure 4 sets forth the proposed mechanism of inhibition of CD38 by nicotinamide deoxyribose.
- Figure 5 sets forth the proposed mechanism of rescue of inhibited
- FIG. 6 illustrates the activity of CD38 as measured by the conversion of NGD + to cGDPR (activity curves not shown). Activities were measured at the times indicated after incubation with nicotinamide-2'- deoxyribose (2 ⁇ M) .
- FIG. 7 depicts the radiochemical titration of CD38.
- CD38 (1.2 ⁇ M) was separated from [2'- 3 H]nicotinamide-2'-deoxyribose (9 ⁇ M) by gel- filtration at the indicated times, as described in the Experimental Details section.
- the value k 2 the bimolecular rate constant, is determined by the equality k 2 [I]
- Figure 9 sets forth absorbance curves showing recovery of CD38 activity after complete inhibition by nicotinamide deoxyribose, as compared with the control.
- the present invention provides inhibitor compounds having the formula:
- A is chosen from a nitrogen- , oxygen- , or sulfur-linked aryl, alkyl, cyclic, or heterocyclic group; both B and C are hydrogen, or either B or C is a halogen, amino, or thiol group and the other of B or C is hydrogen; and D is a primary alcohol, a hydrogen, or an oxygen, nitrogen, carbon, or sulfur linked to phosphate, a phosphoryl group, a pyrophosphoryl group, or adenosine monophosphate through a phosphodiester or carbon- , nitrogen- , or sulfur- substituted phosphodiester bridge, or to adenosine diphosphate through a phosphodiester or carbon- , nitrogen- , or sulfur-substituted pyrophosphodiester bridge.
- A is an N-linked aryl or heterocyclic group, an O-linked ar or heterocyclic group having the formula -O-Y, or an S-linked aryl or heterocyclic group having the formula -O-Y; both B and C are hydrogen, or either B or C is a halogen, amino, or thiol group and the other of B or C is hydrogen; and D is a primary alcohol or hydrogen.
- A is a nicotinamide group, a pyridyl group, a substituted pyridyl group, a pyrimidyl group, a substituted pyrimidyl group, an O-linked phenyl group, an O-linked substituted phenyl group, an O-linked pyridyl group, an O-linked substituted pyridyl group, an O-linked pyrimidyl group, an S-linked phenyl group, an S- linked substituted phenyl group, an S-linked pyridyl group, an S-linked substituted pyridyl group, or an S-linked pyrimidyl group; both B and C are hydrogen, or either B or C is a halogen, amino, or thiol group and the other of B or C is hydrogen; and D is a primary alcohol or hydrogen.
- Examples of the inhibitor compounds of the present invention are set out in Table 1.
- Particularly preferred are nicotinamide 2'-deoxyribosides.
- Most preferred are the compounds ⁇ -l'-nicotinamide-2'-deoxyribose, ⁇ -D-1'- nicotinamide-2'-deoxyribofuranoside, ⁇ -l'-pyridyl-2'-deoxyribose, and 5'- phospho-l'-pyridyl-deoxyribose, their tautomers, and their pharmaceutically- accep table salts.
- the compounds of the present invention are useful both in free form and in the form of salts.
- pharmaceutically acceptable salts is intended to apply to non-toxic salts derived from inorganic or organic acids and includes, for example, salts derived from the following acids: hydrochloric, sulfuric, phosphoric, acetic, lactic, fumaric, succinic, tartaric, gluconic, citric, methanesulfonic, and p-toluenesulfonic acids.
- the compounds of the present invention are potent mechanism- based inhibitors of ADP-ribosyl cyclases, ADP-ribosyl hydrolases, and/or ADP- ribosyl transferases.
- ADP-ribosyl cyclases ADP-ribosyl hydrolases
- ADP- ribosyl transferases ADP-ribosyl transferases.
- an assay of enzymatic activity of CD38 ten minutes after treatment with a nicotinamide deoxyriboside inhibitor compound ( ⁇ -l'-nicotinamide-2'-deoxyribose) showed residual enzymatic activity to be less then 5% of the control.
- Inhibitory activity of the compounds, as disclosed herein, can be determined by standard assays known in the art.
- the enzyme may Table 1. Inhibitors of ADP-ribosyl transferases, ADP-ribosyl cyclases, and ADP-ribosyl hydrolases
- A a nitrogen- , oxygen- , or sulfur-linked aryl, alkyl, cyclic, or heterocyclic group, or a group with chemical properties consistent with leaving group function; B and C are hydrogen; and D is a primary alcohol.
- Examples of A include, but are not limited to, the following:
- X halogen, thiol or substituted thiol, amino or substituted amino, oxygen or substituted oxygen, or aryl or alkyl groups or heterocycles
- Examples of Y include, but are not limited to, the following:
- either B or C may be halogen, amino, or thiol group when the other of B or C is a hydrogen.
- D may be a hydrogen or an oxygen, nitrogen, carbon, or sulfur linked to phosphate, a phosphoryl group, a pyrophosphoryl group, or adenosine monophosphate through a phosphodiester or carbon- , nitrogen- , or sulfur- substituted phosphodiester bridge, or to adenosine diphosphate through a phosphodiester or carbon- , nitrogen- , or sulfur-substituted pyrophosphodiester bridge.
- Analogues of adenosine monophosphate or adenosine diphosphate also can replace the adenosine monophosphate or adenosine diphosphate groups.
- Molecules of the novel class of mechanism-based inhibitors disclosed herein accomplish mechanism-based trapping at the catalytic site of their target enzymes.
- the inhibitor is designed to react rapidly to form a covalent intermediate that cannot cyclize and that is stable to hydrolysis, thereby trapping the enzyme in a catalytically-inactive form.
- This novel class of mechanism based inhibitors has potential for the regulation of cyclic ADP-ribose levels through CD38, and provides new tools for investigating the various pathways in which ADP-ribosyl transferases, cyclases, and hydrolases have been implicated.
- the biological availability of a compound of formula (I) can be enhanced by conversion into a pro-drug form.
- a pro-drug can have improved lipophilicity relative to the compound of formula (I), and this can result in enhanced membrane permeability.
- One particularly useful form of pro- drug is an ester derivative.
- one or more hydroxy groups in a compound of formula (I) can be O- acylated, to make an acylate derivative.
- Pro-drug forms of a 5-phosphate ester derivative of compounds of formula (I) can also be made. These may be particularly useful, since the anionic nature of the 5-phosphate may limit its ability to cross cellular membranes. Conveniently, such a 5-phosphate derivative can be converted to an uncharged bis (acyloxymethyl) ester derivative.
- the utility of such a pro-drug relies upon the action of one or more of the ubiquitous intracellular lipases to catalyse the hydrolysis of ester groups, releasing a molecule of formaldehyde and the compound of formula (I) at or near its site of action. Specific examples of the utility of, and general methods for making, such acyloxymethyl ester pro- drug forms of phosphorylated carbohydrate derivatives have been described (28-31).
- ADP-ribosyl transferase refers to those enzymes which catalyze the transfer of ADP-ribose (adenosine 5"-diphospho-5'- ⁇ -D-ribose) from NAD + (nicotinamide adenine dinucleotide) to acceptor groups that are chemically reactive as nucleophiles, as well as enzymes that share catalytic site homology with such enzymes.
- the acceptor groups include the nucleophilic groups of proteins, nucleic acids, sugars, and lipids.
- Biologically reactive nucleophiles also include other metabolites containing carboxyl groups, amino groups, guanidinium groups, thiol groups, and nitrogens of aromatic or aliphatic compounds, as well as other groups chemically recognized as having nucleophilic character.
- the ADP-ribosyl transferase family of enzymes produces ADP-ribosylated proteins, ADP- ribosylated nucleic acids, ADP-ribosylated sugars, sugar polymers in homo- or hetero-polymeric forms, glycoproteins, ADP-ribosylated lipids, and ADP- ribosylated compounds of cellular metabolism.
- Compounds of cellular metabolism include carboxylic acids, sugars, amino acids, lipids, nucleotides, nucleosides, vitamins, and intermediates in the biochemical pathways that synthesize these compounds of cellular metabolism.
- ADP-ribosyl cyclase includes those enzymes that catalyze the conversion of NAD + to ADP-ribose (adenosine 5"-diphospho-5'- ⁇ -D- ribose), in which reaction a chemical bond between carbon 1' of the ⁇ -D-ribose group of NAD + (nicotinamide adenine dinucleotide) is transferred to any nucleophilic acceptor group within the same ADP-ribose molecule, thereby forming a cyclic ring system not existing in the parent molecule of NAD + .
- Nucleophilic acceptor groups include nitrogen and oxygen groups of the parent NAD + molecule (e.g., the structure of cyclic-ADP-ribose, in which the carbon 1' of the ⁇ -D-ribose group of NAD + is cyclized to nitrogen 1' of the adenine ring to form a new cyclic ring).
- ADP-ribosyl hydrolase refers to those enzymes that catalyze the transfer of ADP-ribose (adenosine 5"- diphospho-5'- ⁇ -D-ribose) from NAD + (nicotinamide adenine dinucleotide) in the formation of ADP-ribose or cyclic-ADP-ribose.
- ADP-ribosyl hydrolase also includes enzymes that catalyze the removal of ADP-ribose, in a hydrolytic reaction, from the ADP-ribosylated groups that are chemically reactive as nucleophiles, defined above.
- ADP-ribosylated groups that are chemically reactive as nucleophiles include the groups of ADP-ribosylated-proteins, ADP-ribosylated-nucleic acids, ADP- ribosylated-sugars, and ADP-ribosylated-lipids from the covalent ADP-ribose.
- Biologically reactive groups removed from ADP-ribose by hydrolysis may also include biological metabolites containing ADP-ribosylated-carboxyl groups, ADP-ribosylated-amino groups, ADP-ribosylated-guanidinium groups, ADP- ribosylated-thiol groups, ADP-ribosylated-nitrogens of aromatic or aliphatic compounds, and other ADP-ribosylated groups chemically recognized as having nucleophilic character.
- This family of hydrolases regenerates proteins from ADP-ribosylated proteins, nucleic acids from ADP-ribosylated nucleic acids, sugars from ADP-ribosylated sugars, sugar polymers in homo- or hetero- polymeric forms from their ADP-ribosylated states, and glycoproteins from ADP- ribosylated glycoproteins, lipids from ADP-ribosylated lipids, and removes ADP- ribose from ADP-ribosylated compounds of cellular metabolism.
- ADP-ribosyl transferases include carboxylic acids, sugars, amino acids, lipids, nucleotides, nucleosides, vitamins, and intermediates in the biochemical pathways that synthesize these biological metabolites.
- ADP-ribosyl transferases, cyclases, and hydrolases include, without limitation, ADP-ribosyl transferases involved in the regulation of gene expression (e.g., SIR family enzymes and their homologues), human CD38, the human ADP-ribosyl cyclase, invertebrate and plant ADP-ribosyl cyclases (e.g., Aplysia californica ADP ribosyl-cyclase), and human bone stromal cell antigen (humBSTl).
- the enzyme of the present invention is CD38.
- the method of the present invention comprises contacting an
- ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme with one of the inhibitor compounds of the present invention or their pharmaceutically-acceptable salts, as disclosed herein, in an amount effective to inhibit the enzyme.
- the ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP- ribosyl hydrolase enzyme may include any of those described above (e.g., ADP- ribosyl transferases involved in the regulation of gene expression (e.g., SIR family enzymes and their homologues), human CD38, the human ADP-ribosyl cyclase, invertebrate and plant ADP-ribosyl cyclases (e.g., Aplysia californica ADP ribosyl-cyclase), and human bone stromal cell antigen (humBSTl)).
- the enzyme is CD38.
- the inhibitor compound may be chosen from any of those disclosed herein.
- the pharmaceutical composition comprises an inhibitor compound chosen from the preferred compounds of the first aspect of the invention. More preferably, the inhibitor compound is chosen from the more preferred compounds of the first aspect of the invention. Most preferably, the inhibitor compound is ⁇ -l'-nicotinamide-2'-deoxyribose, ⁇ -D-l'-nicotinamide-2'- deoxyribofuranoside, ⁇ -l'-pyridyl-2'-deoxyribose, and 5'-phospho-l'-pyridyl- deoxyribose.
- an "amount effective to inhibit the enzyme” refers to an amount that disables, disrupts, or inactivates the function of the enzyme.
- Inhibitor compounds contemplated for the inhibition of ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzymes may form a combination of enzyme and inhibitor, thereby generating complexes that reduce the catalytic function of the enzyme.
- the inhibitor compound of the present invention, or a pharmaceutically-acceptable salt thereof may be contacted with the enzyme either in vivo or in vitro, using techniques well known to one of skill in the art.
- the inhibitor compound may be used as tools for investigating the pathways in which ADP-ribosyl transferase, ADP- ribosyl cyclase, or ADP-ribosyl hydrolase enzymes are involved.
- the inhibitor compound may be used to treat a disease or condition in which it is desirable to decrease the activity of an ADP- ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme.
- the present invention further provides a method for treating a disease or condition that is directly or indirectly associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme in a subject in need of treatment thereof.
- the method of the present invention comprises administering to the subject any one of the inhibitor compounds of the present invention, or a pharmaceutically-acceptable salt thereof, in an amount effective to treat the disease or condition.
- a "subject" is a mammal, including, without limitation, a cow, dog, human, monkey, mouse, pig, or rat, as described above.
- the subject is a human.
- the ADP- ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme may include any of those described above (e.g., ADP-ribosyl transferases involved in the regulation of gene expression (e.g., SIR family enzymes and their homologues), human CD38, the human ADP-ribosyl cyclase, invertebrate and plant ADP-ribosyl cyclases (e.g., Aplysia californica ADP ribosyl-cyclase), and human bone stromal cell antigen (humBSTl)).
- the enzyme is CD38.
- disease refers to any deviation from, or interruption of, the normal structure or function of any part, organ, or system (or combination thereof) of the body that presents an abnormal or pathologic body state.
- condition refers to any state of physical or mental abnormality.
- a disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme includes a disease or condition wherein an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme contributes to (either directly or indirectly), or is responsible for, the pathophysiology of the disease or condition, or in which it is desirable to decrease the activity of an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme, or in which it is desirable to regulate the level of cADPR.
- the disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme may include any disease or condition associated with a defect or deficiency in the transmembrane flux of calcium (Ca 2+ ) ions into or out of cells, particularly vascular smooth muscle cells, cardiac muscle cells, and cells of the nervous system.
- Examples of such diseases may include, without limitation, angina (e.g., angina pectoris, chronic stable angina, and vasospastic angina), arrhythmias, atrial fibrillation, hypertension, paroxysmal supraventricular tachycardia, acute disseminated encephalomyelitis (ADEM), acute transverse myelitis, acute viral encephalitis, adrenoleukodystrophy (ALD), adrenomyeloneuropathy, AIDS-vacuolar myelopathy, experimental autoimmune encephalomyelitis (EAE), experimental autoimmune neuritis (EAN), HTLV- associated myelopathy, Leber's hereditary optic atrophy, multiple sclerosis (MS), progressive multifocal leukoencephalopathy (PML), subacute sclerosing panencephalitis, and tropical spastic paraparesis.
- angina e.g., angina pectoris, chronic stable angina, and vasospastic
- the disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme also may include diseases or conditions associated with insulin release (e.g., diabetes), lymphocyte activation, bone homeostasis, and synaptic plasticity.
- the inhibitor compound may be chosen from any of those disclosed herein.
- the inhibitor compound is chosen from the preferred compounds of the first aspect of the invention.
- the inhibitor compound is chosen from the more preferred compounds of the first aspect of the invention.
- the inhibitor compound is ⁇ -l'-nicotinamide-2'-deoxyribose, ⁇ -D-l'-nicotinamide-2'- deoxyribofuranoside, ⁇ -l'-pyridyl-2'-deoxyribose, and 5'-phospho-l'-pyridyl- deoxyribose.
- an inhibitor compound as disclosed herein, is administered to a subject who has a disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme, in an amount effective to treat the disease or condition in the subject.
- the phrase "effective to treat the disease or condition” means effective to ameliorate or minimize the clinical impairment or symptoms resulting from the disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme.
- the clinical impairment or symptoms of the disease or condition may be ameliorated or minimized by decreasing systolic and/or diastolic blood pressure, and thereby minimizing dizziness, flushed face, fatigue, headache, epistaxis, nervousness, and other symptoms associated with hypertension, particularly severe hypertension.
- the amount of inhibitor compound effective to treat a disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme in a subject in need of treatment thereof will vary depending on the particular factors of each case, including the type of disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme, the subject's weight, the severity of the subject's condition, and the method of administration.
- the dosage for an adult human will range from less than 1 mg to 1000 mg (preferably, 0.1 mg to 100 mg). Nevertheless, requisite amounts can be readily determined by the skilled artisan.
- the inhibitor compounds disclosed herein may be administered to a subject who is already receiving an inhibitor of the ryanodine receptor or an antagonist that binds the ryanodine receptor.
- the inhibitor compounds of the present invention when contacted with the ADP-ribosyl transferase, cyclase, and hydrolase enzymes described herein, result in a decrease in cADPR concentration. It is expected that this decrease would prevent cADPR from competing against antagonists or inhibitors binding at the same site on the ryanodine receptors.
- the inhibitor compound may be administered to a human or animal subject by known procedures, including, without limitation, oral administration, parenteral administration (e.g., epifascial, intracapsular, intracutaneous, intradermal, intramuscular, intraorbital, intraperitoneal, intraspinal, intrasternal, intravascular, intravenous, parenchyma tous, or subcutaneous administration), transdermal administration, and administration by osmotic pump.
- parenteral administration e.g., epifascial, intracapsular, intracutaneous, intradermal, intramuscular, intraorbital, intraperitoneal, intraspinal, intrasternal, intravascular, intravenous, parenchyma tous, or subcutaneous administration
- transdermal administration e.g., transdermal administration
- the inhibitor compound of the present invention is administered orally.
- the inhibitor compound may be formulated in solid or liquid preparations, e.g., capsules, tablets, powders, granules, dispersions, solutions, and suspensions
- the inhibitor compounds of the invention are tableted with conventional tablet bases, such as lactose, sucrose, mannitol, and corn starch, together with a binder, a disintegration agent, and a lubricant.
- tablet bases such as lactose, sucrose, mannitol, and corn starch
- binders such as crystalline cellulose, cellulose derivatives, acacia, corn starch, or gelatins.
- disintegrators such as corn starch, potato starch, or sodium carboxymethylcellulose.
- the formulation also may be presented with dibasic calcium phosphate anhydrous or sodium starch glycolate.
- the formulation may be presented with lubricants, such as talc or magnesium stearate.
- lubricants such as talc or magnesium stearate.
- Other components such as coloring agents and flavoring agents, also may be included.
- Liquid forms for use in the invention include carriers, such as water and ethanol, with or without other agents, such as a pharmaceutically-acceptable surfactant or suspending agent.
- the inhibitor compound may be combined with a sterile aqueous solution which is preferably isotonic with the blood of the subject.
- Such a formulation may be prepared by dissolving a solid active ingredient in water containing physiologically-compatible substances, such as sodium chloride, glycine, and the like, and having a buffered pH compatible with physiological conditions, so as to produce an aqueous solution, then rendering said solution sterile.
- physiologically-compatible substances such as sodium chloride, glycine, and the like
- the formulations may be presented in unit or multi-dose containers, such as sealed ampules or vials.
- the formulation may be delivered by any mode of injection, including, without limitation, epifascial, intracapsular, intracutaneous, intradermal, intramuscular, intraorbital, intraperitoneal, intraspinal, intrasternal, intravascular, intravenous, parenchymatous, or subcutaneous.
- the inhibitor compound may be combined with skin penetration enhancers, such as propylene glycol, polyethylene glycol, isopropanol, ethanol, oleic acid, N-methylpyrrolidone, and the like, which increase the permeability of the skin to the inhibitor compound, and permit the inhibitor compound to penetrate through the skin and into the bloodstream.
- skin penetration enhancers such as propylene glycol, polyethylene glycol, isopropanol, ethanol, oleic acid, N-methylpyrrolidone, and the like, which increase the permeability of the skin to the inhibitor compound, and permit the inhibitor compound to penetrate through the skin and into the bloodstream.
- the inhibitor compound/enhancer composition also may be further combined with a polymeric substance, such as ethylcellulose, hydroxypropyl cellulose, ethylene/vinylacetate, polyvinyl pyrrolidone, and the like, to provide the composition in gel form, which may be dissolved in solvent, such as methylene chloride, evaporated to the desired viscosity, and then applied to backing material to provide a patch.
- a polymeric substance such as ethylcellulose, hydroxypropyl cellulose, ethylene/vinylacetate, polyvinyl pyrrolidone, and the like
- solvent such as methylene chloride
- the inhibitor compound of the present invention also may be released or delivered from an osmotic mini-pump or other time-release device.
- the release rate from an elementary osmotic mini-pump may be modulated with a microporous, fast-response gel disposed in the release orifice.
- An osmotic mini-pump would be useful for controlling release, or targeting delivery, of the inhibitor compound.
- the present invention provides a pharmaceutical composition, comprising a pharmaceutically effective amount of an inhibitor compound of the first aspect of the invention.
- the inhibitor compound may be chosen from any of those described above.
- the pharmaceutical composition comprises an inhibitor compound chosen from the preferred compounds of the first aspect of the invention. More preferably, the inhibitor compound is chosen from the more preferred compounds of the first aspect of the invention.
- the inhibitor compound is ⁇ -l'-nicotinamide-2'- deoxyribose, ⁇ -D-l'-nicotinamide-2'-deoxyribofuranoside, ⁇ -l'-pyridyl-2'- deoxyribose, and 5'-phospho-l'-pyridyl-deoxyribose.
- the pharmaceutically-acceptable carrier must be "acceptable" in the sense of being compatible with the other ingredients of the composition, and not deleterious to the recipient thereof.
- acceptable pharmaceutical carriers include carboxymethyl cellulose, crystalline cellulose, glycerin, gum arabic, lactose, magnesium stearate, methyl cellulose, powders, saline, sodium alginate, sucrose, starch, talc, and water, among others.
- Formulations of the pharmaceutical composition may be conveniently presented in unit dosage.
- the formulations of the present invention may be prepared by methods well-known in the pharmaceutical art. For example, the inhibitor compound may be brought into association with a carrier or diluent, as a suspension or solution.
- one or more accessory ingredients e.g., buffers, flavoring agents, surface active agents, and the like
- the choice of carrier will depend upon the route of administration.
- the pharmaceutical composition would be useful for administering the inhibitor composition of the present invention to a subject to treat a disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme, including any of those described above.
- the inhibitor compound is provided in an amount that is effective to treat a disease or condition associated with an ADP-ribosyl transferase, ADP-ribosyl cyclase, or ADP-ribosyl hydrolase enzyme in the subject.
- the present invention provides a method of preparing the inhibitor compounds of the first aspect of the invention.
- the method may include one or more of the methods disclosed herein, as well as other methods that will be apparent to those of skill in the art.
- the method of preparing the inhibitor compounds of the present invention may involve a reaction in the presence of silver, as an adaptation of several Hg 2+ couplings and chlorosugars to form nucleosides.
- the method will comprise the following steps: (a) contacting a deoxyribose sugar (e.g., ⁇ -3,5-b ⁇ s- parachlorobenzoyl-l-pyridyl-2-deoxyribose), or a mixture containing a deoxyribose sugar and a base (e.g., 3,5-b-s-parachlorobenzoyl-l-0.-chloro-2- deoxyribose and nicotinamide), with a mixture containing both a silver compound (e.g., AgSbF 6 ) and the compound to be reacted with the deoxyribose sugar (e.g., pyridine or nicotinamide), thereby forming a reaction mixture; (b) redissolving the reaction mixture in MeOH; (c) adding NH 4 C1 to the reaction mixture; (d) filtering the reaction mixture to remove precipitated residual silver; (e) treating the reaction mixture with NH 3 in MeOH;
- ⁇ -nicotinamide-2'-deoxyribose may be synthesized using the following general procedure: 3, 5 -bis -parachlorobenzoyl-1- ⁇ -chloro-2-deoxyribose (16) may be added to nicotinamide in one flask. In a second flask, nicotinamide may be added to AgSbF 6 and acetonitrile. The homogeneous silver solution may be cooled with ice, added to the flask containing the base and sugar, then stirred while chilling in an ice/salt bath. The reaction then may be warmed to room temperature, and stirred.
- the reaction mixture then may be evaporated, and the residue redissolved in MeOH. Residual silver may be precipitated by addition of NH 4 C1, and a further amount of NH 4 C1 may be added to precipitated residual silver.
- the mixture may be filtered (e.g., through CeliteTM) to remove AgCl, and the filtrate then may be evaporated. NMR then may be used on the isolated material to determine the percent yield and the proportions of a- and ⁇ -3,5-b-s-p-chlorobenzoyl-l- nicotinamide-2-deoxyribose stereoisomers in the mixture.
- the protected nicotinamide deoxyriboses ( ⁇ and ⁇ ) then may be subjected to deprotection, without further purification, by treatment with NH 3 in MeOH.
- the MeOH and NH 3 may be evaporated, and the subsequent residue may be redissolved in methanol. Addition of water may result in the precipitation of organic material, which may be removed by centrifugation.
- the aqueous phase may be purified by HPLC to yield the pure and ⁇ deprotected isomers. These isomers may be analyzed by 1H NMR, after evaporation and solubilization in D 2 O.
- ⁇ -l'-pyridyl-2'-deoxyribose may be synthesized by the following general method: ⁇ -3,5-bis-parachlorobenzoyl-l-pyridyl-2-deoxyribose may be added to one flask. To a second flask may be added pyridine, AgSbF 6 , and CH 2 C1 2 . The silver solution may be cooled, and then added to the flask containing the base and sugar. The solution may be stirred in an ice/salt bath, until a gray precipitate forms. The reaction mixture then may be warmed to room temperature, and further stirred. The reaction mixture may be evaporated, and the residue redissolved in MeOH.
- NH 4 C1 then may be added to the precipitated residual silver.
- the mixture may be filtered (e.g., through CeliteTM), and then evaporated.
- NMR may be used to determine the percent yield and the proportion represented by each stereoisomer ( ⁇ and ⁇ ) in the mixture.
- the protected material above may be subjected to deprotection without further purification by treatment with NH 3 in MeOH.
- the MeOH and NH 3 may be evaporated, and the residue suspended in methanol. Addition of water may result in the precipitation of organic material, which may be removed by centrifugation.
- the aqueous phase may be purified by HPLC to yield the pure c. and ⁇ deprotected isomers. These isomers may be analyzed by H NMR following rapid evaporation and solution in D 2 O. [0055]
- the present invention is described in the following Experimental
- Human CD38 (1,2) and related ADP-ribosyl-cyclases (3,4) are attractive targets for inhibitor design based upon their ability to synthesize cyclic ADP-ribose (cADPR) from NAD + (5).
- the compound cADPR is formed by the intramolecular transfer of ADP-ribose of NAD + to Nl of adenine, with retention of the ⁇ -stereochemistry (Scheme 1).
- the cADPR product binds ryanodine receptors that control Ca 2+ release (1, 7-10); therefore, it is a putative second messenger for Ca 2+ release inside cells.
- the mechanism of cADPR formation which is catalyzed by ADP-ribosyl cyclases, occurs through decomposition of the NAD + Cl'-Nl bond, resulting in the formation of an ADP- ribosyl electrophile that has been demonstrated to be a covalent intermediate at the active site of the enzyme (11-15).
- the inventors have designed, synthesized, and evaluated a new class of mechanism-based inhibitors for the ADP-ribosyl cyclases. These novel compounds function via a combination of binding and mechanism-based covalent inactivation of the ADP-ribosyl cyclase enzymes.
- nicotinamide deoxyriboside is a potent inhibitor of CD38 - the human ADP- ribosyl cyclase.
- the chemical synthesis of 2'-deoxy- ⁇ -D-ribofuranosides of nicotinamide, and several analogues, is described herein, as is their inhibitory properties in respect of CD38 catalytic function.
- the homogeneous silver solution was cooled to 0°C with ice, then added to the flask containing the base and sugar. The solution was stirred for 2 h while chilled by an ice/salt bath. The light-gray precipitate that formed was presumed to be AgCl. The reaction then was warmed to room temperature, and stirred an additional 2 h. The reaction mixture was evaporated, and the residue was redissolved in MeOH. Residual silver was precipitated by addition of 1 mg of NH 4 C1, and a 1-mg quantity of NH 4 C1 was added to precipitated residual silver. The mixture was filtered through CeliteTM to remove AgCl, and the filtrate then was evaporated.
- the isolated material was determined to be a mixture of a- and ⁇ -3,5-bis-p-chlorobenzoyl-l-nicotinamide-2-deoxyribose stereoisomers (9:1; ⁇ : ⁇ , with a yield of 70%.
- This procedure is an adaptation of several Hg 2+ couplings and chlorosugars to form nucleosides (18).
- [2'- 3 H] ⁇ -l'-nicotinamide-2'-deoxyribose [2'- 3 H] ⁇ NdR) was used to measure the covalent interaction of inhibitor with CD38 as follows: 9 ⁇ M inhibitor with specific activity of 1233 cpm/nmol was incubated with 1.2 ⁇ M CD38 in a volume of 1 ml of 50 mM potassium phosphate (pH 7.5). The reactions were started by enzyme addition, and quenched by freezing in a dry ice/acetone bath after 30, 60, 90, 120, 250, 500, and 1000 sec. Samples were placed on 1 ml gel filtration columns (0°C) that were used to separate protein from free inhibitor.
- a reaction mixture lacking inhibitor was used as a control.
- CD38 was measured as follows: 25 mM inhibitor with specific activity of 1233 cpm/nmol was incubated with 25.2 ⁇ M CD38 in a volume of 50 ⁇ l of 50 mM Tricine (pH 7.5). The reactions were started by enzyme addition, and quenched by freezing in a dry ice/acetone bath after 2 h, 7200 s. Samples were placed on (0°C) 1-ml gel filtration columns (P-10) that were used to separate protein from free inhibitor. Columns were cooled on ice, and eluted with cold (0°C) 10 mM potassium phosphate (pH 7.5) as eluant.
- the reaction mechanism of CD38 and, presumably, the mechanisms of related ADP-cyclase enzymes, involve the formation of a covalent intermediate along the catalytic reaction coordinate (12). Numerous glycotransferases form covalent intermediates during the catalytic cycle. These enzymes have been inhibited by compounds that feature a 2'-fluorine substitution for the 2'-hydroxyl (2'-OH) group (20-23). This strategy has also proved successful for inhibition of CD38 (12, 24, 25).
- the proposed mechanism of action for these inhibitor compounds is the formation of a reaction intermediate that is resistant to normal hydrolytic breakdown. The intermediate is probably resistant to nucleophilic displacement on the enzyme because of the inductive effect of the fluorine atom (12, 20-23).
- reaction mixtures containing 0 to 50 ⁇ M ⁇ NdR were initiated by addition of enzyme (Figure 8) .
- the initial slopes in Figure 8 were used to determine a K; value of 1 ⁇ M - the inherent binding affinity of the enzyme for ⁇ NdR.
- the rate curves in Figure 8 are consistent with competitive inhibition during initial rate measurements, but show increasing inhibition over time. This second phase, showing increased inhibition, reflects conversion of the initial bound inhibitor to a more stable form, proposed to be the chemical reaction of the inhibitor to form an enzyme covalent complex.
- the fits of these curves determine a rate constant for chemical reaction: a k chem of 0.0126 s "1 and a t 1/2 for inactivation of 55 sec ( Figure 4).
- Table 2 shows that K. eff values agree reasonably well, regardless of approach taken.
- the value derived from the former method of calculating K, eff is 0.4 nM, whereas the K, eff values calculated by the latter method are 3.2 and 5.0 nM. Averaging these separate values for K. eff yields a value of 2.9 ⁇ 2.3 nM.
- ⁇ NdR is a potent inhibitor of CD38.
- k chem 0.0126 sec _1
- Figure 4 the rate constant for hydrolysis
- k off 5 x lO ⁇ sec '1
- This number can be compared directly with the k cat for NMN + hydrolysis, since hydrolysis of the covalent intermediate was measured to be 512 sec "1 at 37°C (11).
- the rate of CD38 -deoxyribose hydrolysis is 10 "8 that of CD38 ribose 5-phosphate, implicating the 2'-OH as a proton transfer agent.
- Substrates for the first step of the reaction which lack the hydroxyl (OH) group, generate relatively stable intermediates; thus, they provide potent inhibition of the CD38 enzyme.
- the presence of an electronegative atom is neither necessary nor essential to the development of effective inhibitors for CD38.
- the synthesis of a new generation of mechanism-based inhibitors for ADP-ribosyl transferases is possible, based on the above-described mechanism of catalysis.
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CA2433840A CA2433840C (en) | 2001-01-04 | 2002-01-04 | Inhibitors of adp-ribosyl transferases, cyclases, and hydrolases, and uses thereof |
EP02714706A EP1370139A4 (en) | 2001-01-04 | 2002-01-04 | Inhibitors of adp-ribosyl transferases, cyclases, and hydrolases, and uses thereof |
AU2002246956A AU2002246956B2 (en) | 2001-01-04 | 2002-01-04 | Inhibitors of ADP-ribosyl transferases, cyclases, and hydrolases, and uses thereof |
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US25972001P | 2001-01-04 | 2001-01-04 | |
US60/259,720 | 2001-01-04 |
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EP (1) | EP1370139A4 (en) |
AU (1) | AU2002246956B2 (en) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2842424A1 (en) * | 2002-07-22 | 2004-01-23 | Univ Paris 7 Denis Diderot | USE OF NAD OR ONE OF ITS ANALOGS, SUBSTRATE OF MONO-ADP-RIBOSYL TRANFERASES, FOR THE PREPARATION OF A MEDICAMENT FOR THE TREATMENT OF CONDITIONS RELATED TO PURINERGIC RECEPTORS |
EP1513402A1 (en) * | 2002-05-30 | 2005-03-16 | Albert Einstein College Of Medicine Of Yeshiva University | Improved inhibitors of adp-ribosyl transferases, cyclases, and hydrolases |
WO2008058103A2 (en) * | 2006-11-10 | 2008-05-15 | Boehringer Ingelheim International Gmbh | Assays useful in determining cd38 inhibition |
CN107428733A (en) * | 2014-12-03 | 2017-12-01 | 葛兰素史克知识产权第二有限公司 | CD38 inhibitor and treatment method |
Families Citing this family (12)
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US7056894B2 (en) * | 2001-01-04 | 2006-06-06 | Albert Einstein College Of Medicine Of Yeshiva University | Inhibitors of ADP-ribosyl transferases, cyclases, and hydrolases, and uses thereof |
EP1509234B1 (en) * | 2002-05-21 | 2008-12-17 | Abbott Laboratories | Treatment of mucositis |
US8383653B2 (en) * | 2003-07-02 | 2013-02-26 | Albert Einstein College Of Medicine Of Yeshiva University | SIR2 regulation |
US8017634B2 (en) | 2003-12-29 | 2011-09-13 | President And Fellows Of Harvard College | Compositions for treating obesity and insulin resistance disorders |
JP4700022B2 (en) * | 2006-03-15 | 2011-06-15 | アイバックス ファーマシューティカルズ スポレツノスト エス ルチェニム オメゼニム | Purification method of tacrolimus |
KR20130097813A (en) | 2008-04-21 | 2013-09-03 | 오토노미, 인코포레이티드 | Auris formulations for treating otic diseases and conditions |
US11969501B2 (en) | 2008-04-21 | 2024-04-30 | Dompé Farmaceutici S.P.A. | Auris formulations for treating otic diseases and conditions |
US8784870B2 (en) * | 2008-07-21 | 2014-07-22 | Otonomy, Inc. | Controlled release compositions for modulating free-radical induced damage and methods of use thereof |
DK2670404T3 (en) | 2011-02-02 | 2018-11-19 | Univ Princeton | CIRCUIT MODULATORS AS VIRUS PRODUCTION MODULATORS |
WO2013149258A2 (en) | 2012-03-30 | 2013-10-03 | Charles Drew University of Medicine and Science | Compositions and methods for treating or preventing metabolic syndrome disorders |
JP7033789B2 (en) | 2016-06-29 | 2022-03-11 | オトノミー,インク. | Triglyceride ear preparation and its use |
US20210388018A1 (en) * | 2018-10-01 | 2021-12-16 | Cornell University | Methyl and ethyl nicotinate-riboside-5-phosphates, preparation thereof and methods of use thereof |
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US4275057A (en) * | 1980-01-28 | 1981-06-23 | The United States Of America As Represented By The Department Of Health, Education And Welfare | Seven-membered ring compounds as inhibitors of cytidine deaminase |
WO1997031008A1 (en) * | 1996-02-23 | 1997-08-28 | Industrial Research Limited | Enzyme detection/assay method and substrates |
US7056894B2 (en) | 2001-01-04 | 2006-06-06 | Albert Einstein College Of Medicine Of Yeshiva University | Inhibitors of ADP-ribosyl transferases, cyclases, and hydrolases, and uses thereof |
US7022680B2 (en) | 2002-05-30 | 2006-04-04 | Albert Einstein College Of Medicine Of Yeshiva University | Inhibitors of ADP-ribosyl transferases, cyclases, and hydrolases |
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- 2002-01-04 CA CA2433840A patent/CA2433840C/en not_active Expired - Fee Related
- 2002-01-04 EP EP02714706A patent/EP1370139A4/en not_active Withdrawn
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US6103701A (en) * | 1987-10-28 | 2000-08-15 | Von Borstel; Reid Warren | Method for enhancing hematopoiesis with acyl deoxyribonucleosides |
US5679394A (en) * | 1991-11-12 | 1997-10-21 | Long, Jr.; David M. | Method of extending the vascular dwell-time of particulate therapeutic and particulate diagnostic agents |
US5569650A (en) * | 1993-06-11 | 1996-10-29 | Sloan-Kettering Institute For Cancer Research | C-nucleoside isosters of analogs thereof and pharmaceutical compositions |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1513402A1 (en) * | 2002-05-30 | 2005-03-16 | Albert Einstein College Of Medicine Of Yeshiva University | Improved inhibitors of adp-ribosyl transferases, cyclases, and hydrolases |
EP1513402A4 (en) * | 2002-05-30 | 2009-10-28 | Einstein Coll Med | Improved inhibitors of adp-ribosyl transferases, cyclases, and hydrolases |
FR2842424A1 (en) * | 2002-07-22 | 2004-01-23 | Univ Paris 7 Denis Diderot | USE OF NAD OR ONE OF ITS ANALOGS, SUBSTRATE OF MONO-ADP-RIBOSYL TRANFERASES, FOR THE PREPARATION OF A MEDICAMENT FOR THE TREATMENT OF CONDITIONS RELATED TO PURINERGIC RECEPTORS |
WO2004009097A2 (en) * | 2002-07-22 | 2004-01-29 | Universite Paris 7 - Denis Diderot | Use of a nad analogue, mono-adp-ribosyl transferase substrate and nad antagonist, for preparing a medicine for treating pathologies related to purinergic receptors |
WO2004009097A3 (en) * | 2002-07-22 | 2004-07-08 | Univ Paris 7 Denis Diderot | Use of a nad analogue, mono-adp-ribosyl transferase substrate and nad antagonist, for preparing a medicine for treating pathologies related to purinergic receptors |
WO2008058103A2 (en) * | 2006-11-10 | 2008-05-15 | Boehringer Ingelheim International Gmbh | Assays useful in determining cd38 inhibition |
WO2008058103A3 (en) * | 2006-11-10 | 2008-11-13 | Boehringer Ingelheim Int | Assays useful in determining cd38 inhibition |
CN107428733A (en) * | 2014-12-03 | 2017-12-01 | 葛兰素史克知识产权第二有限公司 | CD38 inhibitor and treatment method |
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AU2002246956B2 (en) | 2006-11-02 |
US7056894B2 (en) | 2006-06-06 |
CA2433840A1 (en) | 2002-08-01 |
US20060084616A1 (en) | 2006-04-20 |
US7504489B2 (en) | 2009-03-17 |
US20020132783A1 (en) | 2002-09-19 |
WO2002059084A3 (en) | 2003-10-16 |
CA2433840C (en) | 2010-05-04 |
EP1370139A4 (en) | 2010-09-22 |
EP1370139A2 (en) | 2003-12-17 |
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