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Lanostane

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Lanostane
Names

Other names 4,4,14α-Trimethylcholestane
Identifiers
CAS Number	474-20-4 (5α)^Y 57496-02-3 (5β)^Y
3D model (JSmol)	(5α): Interactive image (5β): Interactive image
ChEBI	CHEBI:20265 (5α)^N
ChemSpider	7827588 (5α)^N
PubChem CID	9548665 (5α)
CompTox Dashboard (EPA)	DTXSID60963824
InChI InChI=1S/C30H54/c1-21(2)11-9-12-22(3)23-15-19-30(8)25-13-14-26-27(4,5)17-10-18-28(26,6)24(25)16-20-29(23,30)7/h21-26H,9-20H2,1-8H3/t22-,23-,24+,25-,26+,28-,29-,30+/m1/s1^N Key: ZQIOPEXWVBIZAV-ZKYCIREVSA-N^N (5α): InChI=1/C30H54/c1-21(2)11-9-12-22(3)23-15-19-30(8)25-13-14-26-27(4,5)17-10-18-28(26,6)24(25)16-20-29(23,30)7/h21-26H,9-20H2,1-8H3/t22-,23-,24+,25-,26+,28-,29-,30+/m1/s1 Key: ZQIOPEXWVBIZAV-ZKYCIREVBA
SMILES (5α): C[C@H](CCCC(C)C)[C@@]1([H])CC[C@@]2(C)[C@]3([H])CC[C@@]4([H])C(C)(C)CCC[C@]4(C)[C@@]3([H])CC[C@@]21C (5β): C[C@H](CCCC(C)C)[C@@]1([H])CC[C@@]2(C)[C@]3([H])CC[C@]4([H])C(C)(C)CCC[C@]4(C)[C@@]3([H])CC[C@@]21C
Properties
Chemical formula	C₃₀H₅₄
Molar mass	414.762 g·mol⁻¹
Melting point	98 to 99 °C (208 to 210 °F; 371 to 372 K)^[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is ^YN ?) Infobox references

Lanostaneor4,4,14α-trimethylcholestane is a tetracyclic chemical compound with formula C
₃₀H
₅₄. It is a polycyclic hydrocarbon, specifically a triterpene. It is an isomer of cucurbitane.

The name is applied to two stereoisomers, distinguished by the prefixes 5α- and 5β-, which differ by the handedness of the bonds at a particular carbon atom (number 5 in the standard steroid numbering scheme).^[2]

5α-Lanostane
5β-Lanostane

Replacement of a hydrogen atom attached to carbon number 3 in the 5α isomer with a hydroxyl group results in lanosterol, the biogenetic precursor of the steroids in animals.^[2]

References

[edit]

^ Voser, W.; Montavon, M.; Günthard, Hs. H.; Jeger, O.; Ruzicka, L. (1950). "Zur Kenntnis der Triterpene. 156. Mitteilung. Zur Konstitution des Lanostadienols". Helvetica Chimica Acta. 33 (6): 1893–1910. doi:10.1002/hlca.19500330658.

^ ^a ^b IUPAC Commission on the Nomenclature of Organic Chemistry and IUPAC-IUB Commission on Biochemical Nomenclature (1969). "The Nomenclature of Steroids — Revised Tentative Rules". European Journal of Biochemistry. 10 (1): 1–19. doi:10.1111/j.1432-1033.1969.tb00650.x.

Saponin Glycosides

Sapogenin (aglycone)

Steroidal
(C₂₇ skeleton)

Triterpene
(C₃₀ skeleton)

Tetracyclic

Pentacyclic

Glycone

v t e Tetracyclics
Classes	Polyketides Tetracenes Steroids
Antibiotics	Tetracyclines Tetracycline Chlortetracycline Demeclocycline Doxycycline Eravacycline Lymecycline Minocycline Omadacycline Oxytetracycline Rolitetracycline Sarecycline Glycylcycline Tigecycline Triterpenes Fusidanes Fusidic acid Helvolic acid Cephalosporin P₁
Antidepressants (TeCAs)	Azipramine Ciclopramine Esmirtazapine Mianserin Mirtazapine Naranol Oxaprotiline Setiptiline (teciptiline)
Steroids	Sex hormones Progestogens Acetomepregenol Chlormadinone acetate Danazol Delmadinone acetate Etonogestrel Gestodene Hydroxyprogesterone caproate Levonorgestrel Norethisterone Norgestrel Progesterone Segesterone acetate Tibolone Sterane Cholane Cholestane Ergostane Gonanes Androstane Estrane Pregnane Allopregnane Norpregnane Retropregnane Triterpenes Cycloartane Cucurbitacins Cucurbitane Dammarane Euphane Lanostane Protostane Sterols Phytosterols Campesterol beta-Sitosterol Cholesterol Stanol esters

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