4-(6-Bromo-2-benzothiazolyl)benzenamine
目录号 : GC31208
4-(6-Bromo-2-benzothiazolyl)benzenamine是β-淀粉样蛋白(β-amyloid)的PET（正电子发射断层扫描）示踪剂，可用于诊断神经疾病，如阿尔茨海默病和唐氏综合征。
Cas No.:566169-97-9
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Cell experiment: | For fluorescence Measurement of Uptake of 4-(6-Bromo-2-benzothiazolyl)benzenamine, cultured A375 cells are seeded on glass coverslips with a density of 2×104 cells/well in 24-well plate for 24 h until cell attachment. Then the cells are exposed to 4-(6-Bromo-2-benzothiazolyl)benzenamine at 5 μM for indicated times in the dark. The cells are washed twice with PBS and are then fixed with 4% paraformaldehyde at 4°C for 30 min. The qualitative expression of cell fluorescence is determined using a Leica inverted microscope[2]. |
Animal experiment: | Mice[2]A total of 5×106 B16 cells are inoculated into female ICR mice (about 19-21 g, 7 weeks). The subcutaneous inoculation of tumor cells resulted in tumor generation at the injection site. When tumors reached about 4×4 mm2 in diameter, mice are separated into groups. Each group had four mice in each experiment; 4 mg/kg of 4-(6-Bromo-2-benzothiazolyl)benzenamine is injected into the tumor site, and then tumor is exposed to different doses of UVA on the day after injection. Tumor volume is measured by calipers every 5 days after agent injection, and tumor volume is calculated[2] |
References: [1]. Klunk W, et al. Benzothiazole derivative compounds, compositions and uses. WO2004083195 A1 | |
4-(6-Bromo-2-benzothiazolyl)benzenamine is a β-amyloid PET (positron emission tomography) tracer that can be used in the diagnosis of neurological diseases, such as Alzheimer's and Down's syndrome.
4-(6-Bromo-2-benzothiazolyl)benzenamine (compound 6l) plus ultraviolet A (UVA) can induce caspase-3 activity, poly(ADP-ribose)polymerase cleavage, M30 positive CytoDeath staining, and subsequent apoptotic cell death. Treatment of A375 cells with 4-(6-Bromo-2-benzothiazolyl)benzenamine plus UVA results in a decrease in mitochondrial membrane potential (δΨmt), oxidative phosphorylation system (OXPHOS) subunits, and adenosine triphosphate (ATP) but an increase in mitochondrial DNA 4977-bp deletion via reactive oxygen species (ROS) generation. Transmission electron microscopy (TEM) observations also show major ultrastructural alterations of mitochondria[2].
4-(6-Bromo-2-benzothiazolyl)benzenamine plus UVA is shown to reduce murine melanoma size in a mouse model. 4-(6-Bromo-2-benzothiazolyl)benzenamine-PDT may serve as a potential ancillary modality for the treatment of melanoma[2].
[1]. Klunk W, et al. Benzothiazole derivative compounds, compositions and uses. WO2004083195 A1 [2]. Chen YK, et al. Apoptosis induced by 2-aryl benzothiazoles-mediated photodynamic therapy in melanomas via mitochondrial dysfunction. Chem Res Toxicol. 2014 Jul 21;27(7):1187-98.
| Cas No. | 566169-97-9 | SDF | |
| Canonical SMILES | NC1=CC=C(C2=NC3=CC=C(Br)C=C3S2)C=C1 | ||
| 分子式 | C13H9BrN2S | 分子量 | 305.19 |
| 溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 3.2766 mL | 16.3832 mL | 32.7665 mL |
| 5 mM | 0.6553 mL | 3.2766 mL | 6.5533 mL |
| 10 mM | 0.3277 mL | 1.6383 mL | 3.2766 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
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| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
2-(2'-((Dimethylamino)methyl)-4'-(3-[18F]fluoropropoxy)-phenylthio)benzenamine
Serotonin (5-hydroxytryptamine, 5-HT) has diverse physiological roles as a neurotransmitter in the central nervous system (1). It is also a regulator of smooth muscle function and platelet aggregation. The brain 5-HT system has been implicated in several neuropsychiatric disorders, including major depression, anxiety, obsessive-compulsive disorder, and schizophrenia (2, 3). The serotonergic transmission is controlled in part by the serotonin transporter (SERT), which regulates the concentration of free, active 5-HT in the synaptic cleft. Citalopram, paroxetine, and fluoxetine were developed as selective SERT inhibitors to treat depression and anxiety disorders by blocking the reuptake of 5-HT [PubMed]. The blockade led to a higher 5-HT concentration in the synaptic cleft and subsequently to improved patient health.
trans-1,2,3,5,6,10-β-Hexahydro-6-[4-([11C]methylthio)phenyl[pyrrolo-[2,1-a]isoquinoline ([11C]McN5652) binds selectively to the SERT, and its regional distribution of binding in humans correlates well with the known distribution of the SERT in human brain (4). However, the usefulness of [11C]McN5652 is limited by its nonspecific binding and slow release from specific binding sites (5). [11C]N,N-Dimethyl-2-(2-amino-4-cyanophenylthio)benzylamine ([11C]DASB) was found to be a useful tracer for SERT imaging in animals and humans (6-9). It displayed a nanomolar affinity for SERT and a >1,000-fold affinity for SERT over the dopamine transporter (DAT) and the norepinephrine transporter (NET). Uptake in the SERT-rich brain regions was both saturable and selective for SERT. However, the potential widespread use of [11C]DASB is limited by the short half-life of 11C (20 min). 2-(2'-((Dimethylamino)methyl)-4'-(3-fluoropropoxy)-phenylthio)benzenamine was shown to be a selective inhibitor of SERT. 2-(2'-((Dimethylamino)methyl)-4'-(3-[18F]fluoropropoxy)-phenylthio)benzenamine ([18F]1) is being evaluated as a useful tool for SERT imaging.
( E)-4-(2-(6-(2-(2-(2-([18F]-fluoroethoxy)ethoxy)ethoxy)pyridin-3-yl)vinyl)- N-methylbenzenamine
Alzheimer's disease (AD) is a form of dementia with a gradual memory loss and a progressive decline in mental functions overtime (1, 2). It is characterized pathologically by neuronal loss, extracellular senile plaques (aggregates of amyloid-beta peptides consisting of 40 to 42 amino acids) and intracellular neurofibrillary tangles (filaments of microtubule-binding hyper-phosphorylated protein tau) in the brain, especially in the hippocampus and associative regions of the cortex (3, 4). β-amyloid peptides and tau protein are implicated as the main causes of neuronal degeneration and cell death (5, 6).
Early diagnosis of AD is important for treatment consideration and disease management (7). Various β-amyloid imaging agents have been developed for magnetic resonance imaging (MRI), single photon emission computed tomography (SPECT), and positron emission tomography (PET) (8-13). The binding of different derivatives of Congo red, thioflavin, stibene, and aminonaphthalene has been studied in human post-mortem brain tissue and in transgenic mice. Out of these analogues, 2-(1-(6-[(2-[18F]fluoroethyl)(methyl)amino]-2-naphthyl)ethylidene)malono nitrile ([18F]FDDNP) was studied in humans, showing more binding in the brains of patients with AD than in those of healthy people (14). However, [18F]FDDNP showed low signal-to-noise ratios for PET imaging, because it is highly lipophilic. N-methyl-[11C]-2-(4’-methylaminophenyl)-6-hydroxybenzothiasole, a β-amyloid binding compound based on a series of neutral thioflavin-T derivatives (15), was radiolabeled with the positron-emitting radionuclide 11C ([11C]6-OH-BTA-1 or [11C]PIB). [11C]6-OH-BTA-1 was found to be a promising imaging agent for the senile plaques in the brain (16). Zhang et al. (17) reported the development of a series of fluorinated polyethylene glycol (PEG) units (n = 2-5) for PET imaging of β-amyloid plaques in the brain. Two of them, [18F]{4-[2-(4-{2-(2[2-(2-Fluoro-ethoxy)-ethoxyl]-ethoxy}-phenyl)-vinyl]-phenyl}-methyl-amine ([18F]BAY94-9172, [18F]AV-1) (18) and (E)-4-(2-(6-(2-(2-(2-([18F]-fluoroethoxy)ethoxy)ethoxy)pyridin-3-yl)vinyl)-N-methyl benzenamine ([18F]AV-45) (19), are being evaluated in clinical trials.
2-Bromo-4-chloro-6-[(E)-(2-chloro-phen-yl)imino-meth-yl]phenol
The title compound, C(13)H(8)BrCl(2)NO, was obtained by reaction of 3-bromo-5-chloro-salicylaldehyde and 2-chloro-benzenamine in methanol. The mol-ecule displays an E configuration with respect to the imine C=N double bond. The dihedral angle between the two benzene rings is 4.57 (11)°. The mol-ecular conformation is stabilized by an intra-molecular O-H?N hydrogen bond. In the crystal structure, mol-ecules are linked by inter-molecular C-H?O hydrogen-bonding inter-actions into zigzag chains running parallel to the b axis. Inter-molecular Br?Cl [3.5289 (11) ?] and Cl?Cl [3.5042 (12) ?] inter-actions are present.
Deuterium-substituted 2-(2'-((dimethylamino)methyl)-4'-[18 F](fluoropropoxy)phenylthio)benzenamine as a serotonin transporter imaging agent
Positron emission tomography imaging of serotonin transporter (SERT) is useful for studying brain diseases with altered serotonergic function. A deuterated imaging agent, ([18 F]2-((2-((bis(methyl-d3 )amino)methyl)-4-(3-fluoropropoxy-1,1,2,2,3,3-d6 )phenyl)thio)aniline, [18 F]D12FPBM, [18 F]1), was prepared as a new chemical entity. The deuterated agent, 1, showed excellent binding affinity to SERT; Ki was 0.086 nM, comparable with the undeuterated FPBM. In vivo biodistribution studies in rats with [18 F]1 showed good brain uptake (1.09% dose/g at 2 min post injection) and high specific uptake into the hypothalamus (HY) as compared with cerebellum (CB) (HY/CB = 7.55 at 120 min), suggesting a specific localization to SERT binding sites. Regional brain distribution in rats provided clear indication that [18 F]1 concentrated in the hypothalamus, hippocampus, and striatum, areas with a high SERT density. Results indicate that very little D to H substitution effect was found; [18 F]FPBM and [18 F]1 showed very similar SERT binding. [18 F]1 might be an excellent candidate for SERT imaging.
5-Chloro-2-(2'-((dimethylamino)methyl)-4'-iodophenylthio)benzenamine: a new serotonin transporter ligand
Two novel ligands with 4' substitution on the Phenyl Ring B of biphenylthiol, 5-chloro-2-(2'-((dimethylamino)methyl)-4'-iodophenylthio)benzenamine (7) and 2-(2'-((dimethylamino)methyl)-4'-methoxyphenylthio)-5-iodobenzenamine (8), were prepared and tested as potential serotonin transporter (SERT) imaging agents. The new ligands displayed extremely high binding affinities to SERT (K(i)=0.22+/-0.09 and 0.11+/-0.04 nM, respectively), with very low binding affinities to dopamine and norepinephrine transporters (K(i)>1000 nM). The corresponding [(125)I]7 and [(125)I]8 were successfully prepared from tri-n-butyltin derivatives. They showed good brain uptakes and prolonged retention after intravenous injection in rats (brain uptake was 1.77% and 0.98% dose/g for [(125)I]7, and 0.92% and 0.29% dose/g for [(125)I]8, at 2 and 120 min, respectively). Significantly, [(125)I]7 showed excellent uptake and prolonged retention in the hypothalamus, where SERT concentration was highest. The hypothalamus/cerebellum (HY/CB) ratios (target/background ratios) were 4.24, 7.10, 8.24 and 12.6 at 2, 4, 6 and 12 h, respectively. The HY/CB ratios for [(125)I]8 were 3.97, 5.57 and 5.06 at 1, 2 and 4 h, respectively. Adding the 4'-iodo group to the Phenyl Ring B of Compound (7) appeared to reduce the rate of clearance from the brain, and kinetics favored uptake and retention in the hypothalamus. The localization of [(125)I]7 in the hypothalamus region in the rat brain could be blocked by pretreatment with (+)McN5652, escitalopram and ADAM (2), which are all selective SERT ligands (at 2 mg/kg iv, 5 min pretreatment). Ex vivo autoradiograms of rat brain sections (at 4 h after intravenous injection of [(125)I]7) showed intense labeling in regions of the brain known to have high SERT density. The excellent selective uptake and retention in the hypothalamus region suggest that [(123)I]7 is a potential lead compound for developing new imaging agents targeting SERT-binding sites with single-photon emission computed tomography.