Ambuic Acid
(Synonyms: (+)-Ambuic Acid) 目录号 : GC42780A cyclohexanone
Cas No.:340774-69-8
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >95.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Ambuic acid is a cyclohexanone originally isolated from Pestalotiopsis and Monochaetia species that has phytopathogenic antifungal, quorum sensing inhibitory, and antibacterial activities. It is active against P. ultimum (MIC = 7.5 µg/ml) and inhibits the growth of a variety of other phytopathogenic fungi, including F. solani, H. sativum, and C. gramineum, but not P. oryzae, R. solani, or B. cinerea. Ambuic acid inhibits the biosynthesis of cyclic peptides involved in quorum sensing, including gelatinase biosynthesis-activating pheromone (GBAP) in E. faecalis, autoinducing peptide I (AIP-I) in S. aureus, and LsrD698 and LsrD826 in L. innocua. It suppresses abcess formation in a mouse model of skin infection induced by methicillin-resistant S. aureus (MRSA) when administered at a dose of 5 µg and decreases the activity of the agr quorum sensing system in an in vivo reporter assay.
| Cas No. | 340774-69-8 | SDF | |
| 别名 | (+)-Ambuic Acid | ||
| 化学名 | (2E)-4-[(1R,5R,6R)-3-(1E)-1-hepten-1-yl-5-hydroxy-4-(hydroxymethyl)-2-oxo-7-oxabicyclo[4.1.0]hept-3-en-1-yl]-2-methyl-2-butenoic acid | ||
| Canonical SMILES | OCC1=C(/C=C/CCCCC)C([C@@]2(C/C=C(C)/C(O)=O)[C@H](O2)[C@@H]1O)=O | ||
| 分子式 | C19H26O6 | 分子量 | 350.4 |
| 溶解度 | Soluble in ethanol, methanol, 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 | 2.8539 mL | 14.2694 mL | 28.5388 mL |
| 5 mM | 0.5708 mL | 2.8539 mL | 5.7078 mL |
| 10 mM | 0.2854 mL | 1.4269 mL | 2.8539 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 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % 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。
Two Ambuic Acid dimers derived from homo- endo Diels-Alder reaction from Pestalotiopsis versicolor
J Asian Nat Prod Res 2022 Oct 20;1-9.PMID:36264599DOI:10.1080/10286020.2022.2132480.
Two new dimers of Ambuic Acid, pestaloversicoloric acids A (1) and B (2), and a known derivative, 13(S)-hydroxyambuic acid (3), were isolated from the static fermentation product of Pestalotiopsis versicolor. The structural identification was accomplished via analyses on the data of HR-MS, 1 D and 2 D NMR, and ECD. Different from the well-known exo-type dimer, torreyanic acid, compounds 1 and 2 represent the first example of endo-type product derived from the intermolecular Diels-Alder reaction of two molecules of Ambuic Acid derivative with the identical absolute stereochemistry.
Anti-proliferative Ambuic Acid derivatives from Hawaiian endophytic fungus Pestalotiopsis sp. FT172
Phytochemistry 2017 Aug;140:77-82.PMID:28463686DOI:10.1016/j.phytochem.2017.04.017.
Five previously undescribed Ambuic Acid derivatives, pestallic acids A-E and three known analogs were isolated from the cultured broth of Pestalotiopsis sp. FT172. The structures of the pestallic acids A-E were determined through the analysis of HRMS and NMR spectroscopic data. The absolute configurations (ACs) of pestallic acids B-E were assigned by comparison of the experimental electric circular dichroism (ECD) spectra or the optical rotations with those in the literature. All compounds were tested against A2780 and cisplatin resistant A2780 (A2780CisR) cell lines. Pestallic acid E and (+)-ambuic acid showed potent activities with IC50 values from 3.3 to 17.0 μM.
Ambuic Acid and torreyanic acid derivatives from the endolichenic fungus Pestalotiopsis sp
J Nat Prod 2009 Jan;72(1):182-6.PMID:19117486DOI:10.1021/np800733y.
Six new Ambuic Acid (1) derivatives (2-7) and a new torreyanic acid analogue (8) have been isolated from the crude extract of endophytic fungus Pestalotiopsis sp. inhabiting the lichen Multiclavula [corrected] sp. The structures of these compounds were elucidated primarily by NMR and MS methods, and their absolute configurations were assigned by application of the CD excitation chirality method. Compounds 1 and 2 displayed antimicrobial activity against the Gram-positive bacterium Staphylococcus aureus.
Ambuic Acid inhibits the biosynthesis of cyclic peptide quormones in gram-positive bacteria
Antimicrob Agents Chemother 2009 Feb;53(2):580-6.PMID:19015326DOI:10.1128/AAC.00995-08.
Quorum sensing is a cell-density-dependent regulatory system in gram-positive bacteria and is often regulated by cyclic peptides called "quormones," which function as extracellular communication signals. With an aim to discover an antipathogenic agent targeting quorum sensing in gram-positive bacteria, we screened 153 samples of fungal butanol extracts with the guidance of the inhibition of quorum-sensing-mediated gelatinase production in Enterococcus faecalis. Following the screenings, we found that Ambuic Acid, a known secondary fungal metabolite, inhibited the quorum-sensing-mediated gelatinase production without influencing the growth of E. faecalis. We further demonstrated that Ambuic Acid targeted the biosynthesis of a cyclic peptide quormone called gelatinase biosynthesis-activating pheromone. Furthermore, Ambuic Acid also inhibited the biosynthesis of the cyclic peptide quormones of Staphylococcus aureus and Listeria innocua. These results suggest the potential use of Ambuic Acid as a lead compound of antipathogenic drugs that target the quorum-sensing-mediated virulence expression of gram-positive bacteria.
Signal Biosynthesis Inhibition with Ambuic Acid as a Strategy To Target Antibiotic-Resistant Infections
Antimicrob Agents Chemother 2017 Jul 25;61(8):e00263-17.PMID:28607020DOI:10.1128/AAC.00263-17.
There has been major interest by the scientific community in antivirulence approaches against bacterial infections. However, partly due to a lack of viable lead compounds, antivirulence therapeutics have yet to reach the clinic. Here we investigate the development of an antivirulence lead targeting quorum sensing signal biosynthesis, a process that is conserved in Gram-positive bacterial pathogens. Some preliminary studies suggest that the small molecule Ambuic Acid is a signal biosynthesis inhibitor. To confirm this, we constructed a methicillin-resistant Staphylococcus aureus (MRSA) strain that decouples autoinducing peptide (AIP) production from regulation and demonstrate that AIP production is inhibited in this mutant. Quantitative mass spectrometric measurements show that Ambuic Acid inhibits signal biosynthesis (50% inhibitory concentration [IC50] of 2.5 ± 0.1 μM) against a clinically relevant USA300 MRSA strain. Quantitative real-time PCR confirms that this compound selectively targets the quorum sensing regulon. We show that a 5-μg dose of Ambuic Acid reduces MRSA-induced abscess formation in a mouse model and verify its quorum sensing inhibitory activity in vivo Finally, we employed mass spectrometry to identify or confirm the structure of quorum sensing signaling peptides in three strains each of S. aureus and Staphylococcus epidermidis and single strains of Enterococcus faecalis, Listeria monocytogenes, Staphylococcus saprophyticus, and Staphylococcus lugdunensis By measuring AIP production by these strains, we show that Ambuic Acid possesses broad-spectrum efficacy against multiple Gram-positive bacterial pathogens but does not inhibit quorum sensing in some commensal bacteria. Collectively, these findings demonstrate the promise of Ambuic Acid as a lead for the development of antivirulence therapeutics.