Name | [6-[[5-fluoro-2-(3,4,5-trimethoxyanilino)pyrimidin-4-yl]amino]-2,2-dimethyl-3-oxopyrido[3,2-b][1,4]oxazin-4-yl]methyl dihydrogen phosphate |
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Synonyms |
Fostamatinib
R788 compound Fostamatinib (R788) R788 |
Description | Fostamatinib (R788), a prodrug of the active metabolite R406, is a potent Syk inhibitor with IC50 of 41 nM. |
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Related Catalog | |
Target |
IC50 Value: 41 nM [1]Target: Syk |
In Vitro | in vitro: R788 is a methylene phosphate prodrug of R406, which can be rapidly converted to R406 in vivo. R406 (in vitro active form of R788) selectively inhibits Syk-dependent signaling with EC50 values ranging from 33 nM to 171 nM, more potently than Syk-independent pathways in different cells [1]. R406 inhibits cellular proliferation of a variety of diffuse large B-cell lymphoma (DLBCL) cell lines with EC50 values ranging from 0.8 μM to 8.1 μM [2]. R406 treatment reduces basal phosphorylation of BLNK, Akt, glycogen synthase kinase-3 (GSK-3), forkhead box O (FOXO) and ERK not only in cells with high (TCL-002) but also in cells with low levels of phosphorylated Syk (TCL1-551). In addition, R406 completely inhibits the anti-IgM induced Bcr signal in TCL1 leukemias. Despite the higher levels of constitutively active Syk in TCL1 leukemias, R406 is not selectively cytotoxic to the leukemic cells [3]. |
In Vivo | in vivo: R788 effectively inhibits BCR signaling in vivo, resulting in reduced proliferation and survival of the malignant B cells and significantly prolonged survival of the treated animals [3]. |
References |
Density | 1.5±0.1 g/cm3 |
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Boiling Point | 814.2±75.0 °C at 760 mmHg |
Molecular Formula | C23H26FN6O9P |
Molecular Weight | 580.459 |
Flash Point | 446.2±37.1 °C |
Exact Mass | 580.148315 |
PSA | 199.76000 |
LogP | 2.12 |
Vapour Pressure | 0.0±3.1 mmHg at 25°C |
Index of Refraction | 1.629 |
Storage condition | -20°C |
~50% 901119-35-5 |
Literature: RIGEL PHARMACEUTICALS, INC. Patent: WO2008/64274 A1, 2008 ; Location in patent: Page/Page column 94 ; |