Kapurimycin A2
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| Category | Antibiotics |
| Catalog number | BBF-01530 |
| CAS | 132412-64-7 |
| Molecular Weight | 480.46 |
| Molecular Formula | C26H24O9 |
| Purity | ≥98% |
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Description
It is originally isolated from Str. sp. DO-15. Kapurimycin A2 can resist gram-positive bacteria and a few gram-negative bacteria.
Specification
| Synonyms | 8-Acetyloxy-2-(3-ethyl-2-methyloxiran-2-yl)-8,9,10,11-tetrahydro-12-hydroxy-4,11-dioxo-4H-anthra[1,2-b]pyran-5-acetic acid; [8-(Acetyloxy)-2-(3-ethyl-2-methyloxiran-2-yl)-12-hydroxy-4,11-dioxo-8,9,10,11-tetrahydro-4H-anthra[1,2-b]pyran-5-yl]acetic acid |
| IUPAC Name | 2-[8-acetyloxy-2-(3-ethyl-2-methyloxiran-2-yl)-12-hydroxy-4,11-dioxo-9,10-dihydro-8H-naphtho[2,3-h]chromen-5-yl]acetic acid |
| Canonical SMILES | CCC1C(O1)(C)C2=CC(=O)C3=C(C=C4C=C5C(CCC(=O)C5=C(C4=C3O2)O)OC(=O)C)CC(=O)O |
| InChI | InChI=1S/C26H24O9/c1-4-18-26(3,35-18)19-10-16(29)21-13(9-20(30)31)7-12-8-14-17(33-11(2)27)6-5-15(28)23(14)24(32)22(12)25(21)34-19/h7-8,10,17-18,32H,4-6,9H2,1-3H3,(H,30,31) |
| InChI Key | OBQDKVJMMATTQP-UHFFFAOYSA-N |
Properties
| Appearance | Yellow Powder |
| Antibiotic Activity Spectrum | Gram-positive bacteria; Gram-negative bacteria |
| Boiling Point | 712.4°C at 760 mmHg |
| Density | 1.49 g/cm3 |
Reference Reading
1. The kapurimycins, new antitumor antibiotics produced by Streptomyces. Producing organism, fermentation, isolation and biological activities
M Hara, T Mokudai, E Kobayashi, K Gomi, H Nakano J Antibiot (Tokyo). 1990 Dec;43(12):1513-8. doi: 10.7164/antibiotics.43.1513.
As a result of screening for antitumor agents from actinomycetes, the kepurimycins were isolated from Streptomyces sp. DO-115. The antibiotics were produced in a fermentation medium supplemented with high porous polymer resin which adsorbs antibiotics and results in an increase of titer. The active complex was isolated from the polymer resin by a solvent extraction procedure and was separated by column chromatography, into two minor and one major component, named A1, A2 and A3. The kepurimycins were active against bacteria, particularly Gram-positive organisms, and were cytotoxic to HeLa S3 human cerivical cancer cells and T24 human bladder carcinoma cells in vitro. Among the individual components of the kapurimycins, kapurimycin A3 exhibited the strongest antibacterial and cytotoxic activities. It showed a potent antitumor activity against murine leukemia P388 in vivo.
2. The kapurimycins, new antitumor antibiotics produced by Streptomyces. Physico-chemical properties and structure determination
M Yoshida, M Hara, Y Saitoh, H Sano J Antibiot (Tokyo). 1990 Dec;43(12):1519-23. doi: 10.7164/antibiotics.43.1519.
The kapurimycins A1, A2 and A3 were revealed to be new antitumor antibiotics with molecular formula of C27H26O9, C26H24O9 and C27H24O9, respectively. The structures of the kapurimycins were determined by NMR spectroscopic analysis. The kapurimycins are new class of polycyclic microbial metabolites having the tetrahydroanthra-gamma-pyrone skeleton and the beta, gamma-unsaturated delta-keto carboxylic acid structure. The individual components of the kapurimycins differ from one another in the side chain at the pyrone ring of the molecule.
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Bio Calculators
* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2
* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
