| Molecular Weight: | 485.50 |
| Formula: | C26H26F3N3O3 |
| Purity: | ≥98% |
| CAS#: | 956697-53-3 |
| Solubility: | DMSO up to 100 mM |
| Chemical Name: | N-(6-((2S,6R)-2,6-dimethylmorpholino)pyridin-3-yl)-2-methyl-4'-(trifluoromethoxy)biphenyl-3-carboxamide |
| Storage: | Powder:4oC 1 year. DMSO:4oC3 month;-20oC 1 year. |
Biological Activity:
LDE225 is a potent and specific Hedgehog pathway inhibitor through binding and antagonizing Smo with an IC50 of 11 nM. It is currently in the clinical trials to treat cancers. It inhibited Hh signaling and induces tumor regression in animal models of medulloblastoma. It sensitized chemotherapy-resistant ovarian cancer cell lines to paclitaxel, but not to carboplatin. In one of the clinical trials, treatment with 0.75% LDE225 cream in NBCCS patients was very well tolerated and caused BCC regression.
How to Use:
- In vitro:LDE225 was used at 1 µM final concentration in cellular assays.
- In vivo:LDE225 was dosed orally at 20 mg/kg once per day or 10 mg/kg twice per day (formulation: PEG300/5% dextrose in water 75:25 v/v)
Reference:
- 1. Pan S, et al. Discovery of NVP-LDE225, a Potent and Selective Smoothened Antagonist. (2010) ACS Med. Chem. Lett., 1 (3), pp 130–134.
- 2. Buonamici S, et al. Interfering with resistance to smoothened antagonists by inhibition of the PI3K pathway in medulloblastoma. (2010) Sci Transl Med. 2(51):51ra70.
- 3. Skvara H, et al. Topical treatment of Basal cell carcinomas in nevoid Basal cell carcinoma syndrome with a smoothened inhibitor. (2011) J Invest Dermatol. 131(8):1735-44.
- 4. Steg AD, et al. Smoothened Antagonists Reverse Taxane Resistance in Ovarian Cancer. Mol Cancer Ther. 2012 in press.
- 5. Heller E, et al. Hedgehog signaling inhibition blocks growth of resistant tumors through effects on tumor microenvironment. (2012) Cancer Res. 72(4):897-907.
LDE225_spec.pdf
LDE225_MSDS_1.pdf
Products are for research use only. Not for human use. |
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根据组成不同,可分为两种,弱酸及其对应的强碱弱酸盐,弱碱及其对应的强酸弱碱盐。
因为HF可以和NaOH反应生成NaF和水,当NaOH反应完之后,NaF就可以与HF组成缓冲溶液,所以说可以直接使用NaOH和HF来配制缓冲溶液。
这也是一般配制缓冲溶液的方法,也就是用强碱和弱酸(或者强酸和弱碱)来配制缓冲溶液。
百度教育团队【海纳百川团】为您解答。
感谢您的采纳 O(∩_∩)O 。如有疑问,欢迎追问。
酶提取技术,属地球化学勘查学科。其是由克拉克(J.R.Clark)等人于20世纪80年代末和90年代初研制出的一种利用葡萄糖氧化酶提取矿物颗粒表面的非晶质锰的氧化膜寻找隐伏矿的方法。1995年以后已广泛应用。
因为常用的缓冲溶液由弱酸及其共轭酸盐组合而成,当加入酸时,弱酸盐部分转化为弱酸;当加入碱时,弱酸部分转化为弱酸盐。而弱酸在水中不完全电离,弱酸盐在水中可以水解,所以ph变化较小,保持了溶液的PH基本不变。

