CJ-12954

CJ-12954

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Category Antibiotics
Catalog number BBF-02765
CAS
Molecular Weight 418.52
Molecular Formula C24H34O6

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Description

It is produced by the strain of Phanerochaete velutina CL6387. CJ-12954 has strong anti-helicobacter pylori activity.

Specification

Synonyms (3R)-5,7-Dimethoxy-3-{6-[(2R,5R)-7-methyl-1,6-dioxaspiro[4.4]non-2-yl]hexyl}-2-benzofuran-1(3H)-one
IUPAC Name 5,7-dimethoxy-3-[6-[(2S,5S,7S)-7-methyl-1,6-dioxaspiro[4.4]nonan-2-yl]hexyl]-3H-2-benzofuran-1-one
Canonical SMILES CC1CCC2(O1)CCC(O2)CCCCCCC3C4=C(C(=CC(=C4)OC)OC)C(=O)O3
InChI InChI=1S/C24H34O6/c1-16-10-12-24(29-16)13-11-17(30-24)8-6-4-5-7-9-20-19-14-18(26-2)15-21(27-3)22(19)23(25)28-20/h14-17,20H,4-13H2,1-3H3/t16-,17-,20?,24-/m0/s1
InChI Key MDVWGBKYBVEXHU-METJEHMRSA-N

Properties

Boiling Point 576.0±50.0°C at 760 mmHg
Density 1.2±0.1 g/cm3

Reference Reading

1. Synthesis of the spiroacetal-containing anti-Helicobacter pylori agents CJ-12,954 and CJ-13,014
Margaret A Brimble, Christina J Bryant Chem Commun (Camb). 2006 Nov 21;(43):4506-8. doi: 10.1039/b612757f.
The first synthesis of the spiroacetal-containing anti-Helicobacter pylori agents ent-CJ-12,954 and ent-CJ-13,014 is reported based on the union of a heterocycle-activated spiroacetal-containing sulfone fragment with a phthalide-containing aldehyde fragment; comparison of the 1H and 13C NMR data, optical rotations and HPLC retention times of the synthetic compounds (3S,2"S,5"S,7"S)-(1a) and (3S,2"S,5"R,7"S)-(2a) and the (3R)-diastereomers (3R,2"S,5"S,7"S)-(1b) and (3R,2"S,5"R,7"S)- (2b) with the naturally occurring compounds established that the synthetic isomers (1a) and (2a) were in fact enantiomeric to the natural products CJ-12,954 and CJ-13,014.
2. Synthesis and assignment of the absolute configuration of the anti-Helicobacter pylori agents CJ-12,954 and CJ-13,014
Margaret A Brimble, Christina J Bryant Org Biomol Chem. 2007 Sep 7;5(17):2858-66. doi: 10.1039/b709932k. Epub 2007 Jul 31.
The synthesis of the spiroacetal-containing anti-Helicobacter pylori agents (3S,2''S,5''S,7''S)- (ent-CJ-12,954) and (3S,2''S,5''R,7''S)- (ent-CJ-13,014) has been carried out based on the convergent union of a 1:1 mixture of heterocycle-activated spiroacetal sulfones and with (3S)-phthalide aldehyde . The synthesis of the (3R)-diastereomers (3R,2''S,5''S,7''S)- and (3R,2''S,5''R,7''S)- was also undertaken in a similar manner by union of (3R)-phthalide aldehyde with a 1:1 mixture of spiroacetal sulfones and . Comparison of the (1)H and (13)C NMR data, optical rotations and HPLC retention times of the synthetic compounds (3S,2''S,5''S,7''S)- and (3S,2''S,5''R,7''S)- and the (3R)-diastereomers (3R,2''S,5''S,7''S)- and (3R,2''S,5''R,7''S)-, with the naturally occurring compounds, established that the synthetic isomers and were in fact enantiomeric to the natural products CJ-12,954 and CJ-13,014. The (2S,8S)-stereochemistry in protected dihydroxyketone , the precursor to the mixture of spiroacetal sulfones and was established via union of readily available (S)-acetylene with aldehyde in which the (4S)-stereochemistry was established via asymmetric allylation. Deprotection and cyclization of protected dihydroxyketone afforded an inseparable 1:1 mixture of spiroacetal alcohols and that were converted into a 1:1 inseparable mixture of spiroacetal sulfones and . Phthalide-aldehyde was prepared via intramolecular acylation of bromocarbamate in which the (3S)-stereochemistry was established via asymmetric CBS reduction of ketone .
3. Anti-Helicobacter pylori activity of derivatives of the phthalide-containing antibacterial agents spirolaxine methyl ether, CJ-12,954, CJ-13,013, CJ-13,102, CJ-13,104, CJ-13,108 and CJ-13,015
Fiona J Radcliff, John D Fraser, Zoe E Wilson, Amanda M Heapy, James E Robinson, Christina J Bryant, Christopher L Flowers, Margaret A Brimble Bioorg Med Chem. 2008 Jun 1;16(11):6179-85. doi: 10.1016/j.bmc.2008.04.037. Epub 2008 Apr 18.
The naturally occurring phthalide-containing antibiotics spirolaxine methyl ether, CJ-12,954, CJ-13,013, CJ-13,015, CJ-13,102, CJ-13,103, CJ-13,104 and CJ-13,108, have been reported to exhibit anti-H. pylori activity. However, the exact stereochemistry of spirolaxine methyl ether, CJ-12,954 or CJ-13,013, contributing to this observed activity has not been confirmed. The anti-H. pylori activity of several analogues of spirolaxine methyl ether, CJ-12,954 and CJ-13,013 of defined stereochemistry together with the anti-H. pylori activity of several indole analogues of the simpler phthalide-containing antibiotics CJ-13,102, CJ-13,104, CJ-13,108 and CJ-13,015 is reported herein. A 1:1 mixture of spiroacetals 5b and 6b in which the phthalide substituent exhibited (3R)-stereochemistry was sixty times more active than the corresponding 1:1 mixture of spiroacetals with (3S)-stereochemistry. Notably, the unnatural (2''S)-diastereomer of spirolaxine methyl ether exhibited more potent anti-H. pylori activity than the natural product spirolaxine methyl ether. The 4,6-dimethoxyindoles 9, 10, 11 and 13 were all found to be less active than their parent compounds 1, 2, 3 and 4, respectively. Chain-shortened 4,6-dimethoxyindole analogue 12 of CJ-13,108 3 and 4,6-dimethoxyindole-spiroacetal 13 exhibited weak anti-H. pylori activity thus providing future opportunity for drug discovery programs.

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