7-Dehydrodesmosterol

7-Dehydrodesmosterol
Names

IUPAC name Cholesta-5,7,24-trien-3β-ol
Systematic IUPAC name (1R,3aR,7S,9aR,9bS,11aR)-9a,11a-Dimethyl-1-[(2R)-6-methylhept-5-en-2-yl]-2,3,3a,6,7,8,9,9a,9b,10,11,11a-dodecahydro-1H-cyclopenta[a]phenanthren-7-ol
Other names 24-Dehydroprovitamin D3
Identifiers
CAS Number	143982-69-8^N
3D model (JSmol)	Interactive image Interactive image
ChEBI	CHEBI:27910^Y
ChemSpider	389458^Y
PubChem CID	440558
CompTox Dashboard (EPA)	DTXSID801028219
InChI InChI=1S/C27H42O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h7,9-10,19,21,23-25,28H,6,8,11-17H2,1-5H3/t19-,21+,23-,24+,25+,26+,27-/m1/s1^Y Key: RUSSPKPUXDSHNC-DDPQNLDTSA-N^Y InChI=1/C27H42O/c1-18(2)7-6-8-19(3)23-11-12-24-22-10-9-20-17-21(28)13-15-26(20,4)25(22)14-16-27(23,24)5/h7,9-10,19,21,23-25,28H,6,8,11-17H2,1-5H3/t19-,21+,23-,24+,25+,26+,27-/m1/s1 Key: RUSSPKPUXDSHNC-DDPQNLDTBA
SMILES C[C@H](CCC=C(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3C2=CC=C4[C@@]3(CC[C@@H](C4)O)C)C O[C@@H]4C/C3=C/C=C1\[C@H](CC[C@]2([C@H]1CC[C@@H]2[C@H](C)CCC=C(C)C)C)[C@@]3(C)CC4
Properties
Chemical formula	C₂₇H₄₂O
Molar mass	382.62 g/mol
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

Chemical compound

7-Dehydrodesmosterol (or cholesta-5,7,24-trien-3-beta-ol) is a cholesterol intermediate.^[1]

References

^ Nowaczyk, MJM; Waye, JS (2001). "The Smith-Lemli-Opitz syndrome: A novel metabolic way of understanding developmental biology, embryogenesis, and dysmorphology". Clinical Genetics. 59 (6): 375–86. doi:10.1034/j.1399-0004.2001.590601.x. PMID 11453964. S2CID 9146017.

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Cholesterol and steroid metabolic intermediates

Mevalonate pathway

to HMG-CoA	Acetyl-CoA Acetoacetyl-CoA HMB HMB-CoA HMG-CoA
Ketone bodies	Acetone Acetoacetic acid β-Hydroxybutyric acid
to DMAPP	Mevalonic acid Phosphomevalonic acid 5-Diphosphomevalonic acid Isopentenyl pyrophosphate Dimethylallyl pyrophosphate
Geranyl-	Geranyl pyrophosphate Geranylgeranyl pyrophosphate
Carotenoid	Prephytoene diphosphate Phytoene

Non-mevalonate pathway

Lanosterol
14-demethyllanosterol
4alpha-Methylzymosterol
Zymosterone
Zymosterol

Zymosterol
Cholesta-7,24-dien-3-ol
7-Dehydrodesmosterol
Desmosterol
Cholesterol

From Cholesterol
to Steroid hormones

22R-Hydroxycholesterol
20α,22R-Dihydroxycholesterol
See here instead.

Nonhuman

To Sitosterol	Cycloartenol Cycloeucalenol Obtusifoliol 4α-methylfecosterol Isofucosterol 24-Methylenelophenol Sitosterol More Phytosterols see here instead.
To Ergocalciferol	Fecosterol Episterol Ergostatrienol Ergostatetraenol Ergosterol Ergocalciferol

This article about a steroid is a stub. You can help Wikipedia by expanding it.

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