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SML0040

Sigma-Aldrich

Lometrexol hydrate

≥95% (HPLC), powder, GARFTase inhibitor

Synonyme(s) :

LY 264618 hydrate, N-[4-[2-[(6R)-2-amino-3,4,5,6,7,8-hexahydro-4-oxopyrido[2,3-d]pyrimidin-6-yl]ethyl]benzoyl]-L-glutamic acid hydrate

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About This Item

Formule empirique (notation de Hill):
C21H25N5O6 · xH2O
Numéro CAS:
106400-81-1
Poids moléculaire :
443.45 (anhydrous basis)
Code UNSPSC :
12352200
ID de substance PubChem :
329825110
Nomenclature NACRES :
NA.77

product name

Lometrexol hydrate, ≥95% (HPLC)

Pureté

≥95% (HPLC)

Forme

powder

Couleur

white to light yellow

Solubilité

DMSO: ≥5 mg/mL

Température de stockage

2-8°C

Chaîne SMILES 

O.NC1=NC(=O)C2=C(NC[C@H](CCc3ccc(cc3)C(=O)N[C@@H](CCC(O)=O)C(O)=O)C2)N1

InChI

1S/C21H25N5O6.H2O/c22-21-25-17-14(19(30)26-21)9-12(10-23-17)2-1-11-3-5-13(6-4-11)18(29)24-15(20(31)32)7-8-16(27)28;/h3-6,12,15H,1-2,7-10H2,(H,24,29)(H,27,28)(H,31,32)(H4,22,23,25,26,30);1H2/t12-,15+;/m1./s1

Clé InChI

AEFQSKJUVDZANQ-YLCXCWDSSA-N

Application

Lometrexol hydrate was used to compare the biological activity of potent inhibitor of human GARFTase.

Actions biochimiques/physiologiques

Glycinamide Ribonucleotide Formyltransferase (GARFTase) is a folate-dependent enzyme required for de novo purine synthesis. Lometrexate is a potent inhibitor of GARFTase, but does not interfere with enzymes involved in the synthesis of folate. Lometrexerol has been tested clinically for the treatment of various cancers as an anti-folate like agent, similar to methotrexate. Treatment with lometrexol rapidly decreases ATP and GTP levels, cell cycle arrest and induces apoptosis. Although depletion of nucleotide pools induces p53 expression, lometrexol is cytotoxic in both wild-type and mutant p53 expressing tumor cells. Lometrexol is cytotoxic in CCRF-CEm leukemia cells with an IC50 of 2.9 nM.

Pictogrammes

Skull and crossbones
GHS06

Mention d'avertissement

Danger

Mentions de danger

H301

Classification des risques

Acute Tox. 3 Oral

Code de la classe de stockage

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Consulter la Bibliothèque de documents

Julie L Bronder et al.
Cancer research, 62(18), 5236-5241 (2002-09-18)
The class of folate antimetabolites typified by (6R)-dideazatetrahydrofolate (lometrexol, DDATHF) are specific inhibitors of de novo purine synthesis because of potent inhibition of glycinamide ribonucleotide formyltransferase (GART) but do not induce detectable levels of DNA strand breaks. As such, they
D R Newell
Seminars in oncology, 26(2 Suppl 6), 74-81 (1999-12-22)
Antifolate drugs, as a class, have broad-spectrum activity against both hematologic and solid human malignancies. The pharmacokinetics of the classical antifolate methotrexate have been well-defined and pharmacokinetic data can be exploited to reduce the toxicity and enhance the activity of
Robert Mauritz et al.
Biochemical pharmacology, 63(2), 105-115 (2002-02-14)
We determined the mechanisms of resistance of human CCRF-CEM leukemia cells to methotrexate (MTX) vs. those to six novel antifolates: the polyglutamatable thymidylate synthase (TS) inhibitors ZD1694, multitargeted antifolate, pemetrexed, ALIMTA (MTA) and GW1843U89, the non-polyglutamatable inhibitors of TS, ZD9331
New agents in cancer clinical trials.
J Adams et al.
Oncogene, 19(56), 6687-6692 (2001-06-28)
A Tse et al.
The Journal of biological chemistry, 273(40), 25953-25960 (1998-09-25)
L1210/D3 mouse leukemia cells are resistant to 5, 10-dideazatetrahydrofolate due to expansion of cellular folate pools which block polyglutamation of the drug (Tse, A., and Moran, R. G. (1998) J. Biol. Chem. 273, 25944-25952). These cells were found to have
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