Lumisterol

Lumisterol

Names
IUPAC name (3S,9R,10S,13R,14R,17R)-17-[(E,2R,5R)-5,6-Dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol
Identifiers
CAS Number	474-69-1
ChemSpider	4941479
Jmol interactive 3D	Image
PubChem	6436872
InChI InChI=1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,26+,27+,28+/m0/s1 Key: DNVPQKQSNYMLRS-YAPGYIAOSA-N InChI=1/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7+/t19-,20+,22-,24+,25-,26+,27+,28+/m0/s1 Key: DNVPQKQSNYMLRS-YAPGYIAOBK
SMILES O[C@@H]4C/C3=C/C=C1\[C@@H](CC[C@]2([C@H]1CC[C@@H]2[C@@H](/C=C/[C@H](C)C(C)C)C)C)[C@]3(C)CC4
Properties
Chemical formula	C28H44O
Molar mass	396.66 g·mol^−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Lumisterol is a compound that is part of the vitamin D family of steroid compounds. It is the (9β,10α) stereoisomer of ergosterol and was produced as a photochemical by-product in the preparation of vitamin D₁, which was a mixture of vitamin D₂ and lumisterol.^[1][2] Vitamin D₂ can be formed from lumisterol by an electrocyclic ring opening and subsequent sigmatropic [1,7] hydride shift.

References

1. Dewick, Paul M. (2002). Medicinal Natural Products. A Biosynthetic Approach (PDF) (Second ed.). New York: John Wiley & Sons. p. 259. ISBN 0-471-49640-5.
2. Friedmann, Ernst (1989). Neurath, Hans, ed. Vitamin D. Perspectives in Biochemistry. Volume 1. Washington, DC: American Chemical Society. ISBN 978-0-8412-1621-1.