Varacin

Varacin
Names
	IUPAC name 2-(6,7-dimethoxy-1,2,3,4,5-benzopentathiepin-9-yl)ethanamine
Identifiers
CAS Number	134029-48-4 ;
3D model (JSmol)	Interactive image;
ChEMBL	ChEMBL151233 ;
ChemSpider	156044 ;
PubChem CID	179269;
CompTox Dashboard (EPA)	DTXSID10158465 ;
	InChI InChI=1S/C10H13NO2S5/c1-12-7-5-6(3-4-11)9-10(8(7)13-2)15-17-18-16-14-9/h5H,3-4,11H2,1-2H3 Key: HIKCOAGMCNIBMP-UHFFFAOYSA-N ; InChI=1/C10H13NO2S5/c1-12-7-5-6(3-4-11)9-10(8(7)13-2)15-17-18-16-14-9/h5H,3-4,11H2,1-2H3 Key: HIKCOAGMCNIBMP-UHFFFAOYAP;
	SMILES NCCc2cc(OC)c(OC)c1SSSSSc12;
Properties
Chemical formula	C10H13NO2S5
Molar mass	339.540 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	verify (what is ?)
	Infobox references

Varacin is a bicyclic organosulfur compound originally found in marine Ascidiacea from the Polycitor genus.[1] It contains an unusual pentathiepin ring which reacts with DNA, and varacin and synthetic analogues have been investigated for their antimicrobial and antitumour properties.[2][3] Because of its potent biological activity and unusual and challenging ring system, it has been a popular target of efforts toward its total synthesis.[4][5][6]

References

Makarieva TN, Stonik VA, Dmitrenok AS, Grebnev BB, Isakov VV, Rebachyk NM, Rashkes YW (February 1995). "Varacin and three new marine antimicrobial polysulfides from the far-eastern ascidian Polycitor sp". Journal of Natural Products. 58 (2): 254–8. doi:10.1021/np50116a015. PMID 7769392.
Greer A (October 2001). "On the origin of cytotoxicity of the natural product varacin. A novel example of a pentathiepin reaction that provides evidence for a triatomic sulfur intermediate". Journal of the American Chemical Society. 123 (42): 10379–86. doi:10.1021/ja016495p. PMID 11603989.
Brzostowska EM, Greer A (January 2003). "The role of amine in the mechanism of pentathiepin (polysulfur) antitumor agents". Journal of the American Chemical Society. 125 (2): 396–404. doi:10.1021/ja027416s. PMID 12517151.
Behar V, Danishefsky SJ (1993-07-01). "Total synthesis of the novel benzopentathiepin varacinium trifluoroacetate: the viability of "varacin-free base"". Journal of the American Chemical Society. 115 (15): 7017–7018. doi:10.1021/ja00068a087. ISSN 0002-7863.
Ford PW, Narbut MR, Belli J, Davidson BS (1994-10-01). "Synthesis and Structural Properties of the Benzopentathiepins Varacin and Isolissoclinotoxin A". The Journal of Organic Chemistry. 59 (20): 5955–5960. doi:10.1021/jo00099a026. ISSN 0022-3263.
Toste FD, Still IW (1995-07-01). "A New Route to the Synthesis of the Naturally Occurring Benzopentathiepin Varacin". Journal of the American Chemical Society. 117 (27): 7261–7262. doi:10.1021/ja00132a033.

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[1] Makarieva TN, Stonik VA, Dmitrenok AS, Grebnev BB, Isakov VV, Rebachyk NM, Rashkes YW (February 1995). "Varacin and three new marine antimicrobial polysulfides from the far-eastern ascidian Polycitor sp". Journal of Natural Products. 58 (2): 254–8. doi:10.1021/np50116a015. PMID 7769392.

[2] Greer A (October 2001). "On the origin of cytotoxicity of the natural product varacin. A novel example of a pentathiepin reaction that provides evidence for a triatomic sulfur intermediate". Journal of the American Chemical Society. 123 (42): 10379–86. doi:10.1021/ja016495p. PMID 11603989.

[3] Brzostowska EM, Greer A (January 2003). "The role of amine in the mechanism of pentathiepin (polysulfur) antitumor agents". Journal of the American Chemical Society. 125 (2): 396–404. doi:10.1021/ja027416s. PMID 12517151.

[4] Behar V, Danishefsky SJ (1993-07-01). "Total synthesis of the novel benzopentathiepin varacinium trifluoroacetate: the viability of "varacin-free base"". Journal of the American Chemical Society. 115 (15): 7017–7018. doi:10.1021/ja00068a087. ISSN 0002-7863.

[5] Ford PW, Narbut MR, Belli J, Davidson BS (1994-10-01). "Synthesis and Structural Properties of the Benzopentathiepins Varacin and Isolissoclinotoxin A". The Journal of Organic Chemistry. 59 (20): 5955–5960. doi:10.1021/jo00099a026. ISSN 0022-3263.

[6] Toste FD, Still IW (1995-07-01). "A New Route to the Synthesis of the Naturally Occurring Benzopentathiepin Varacin". Journal of the American Chemical Society. 117 (27): 7261–7262. doi:10.1021/ja00132a033.