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前维生素D3

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Previtamin D3
IUPAC名
Previtamin D3
识别
CAS号 1173-13-3  ☒N
17592-07-3  ☒N
PubChem 86590
6178113(E)-en
25245851(1S)-1-ol, (Z)-en, (2R)-2-yl
11485943(1S)-1-ol, (E)-en, (1R,7aR)-7a-meth,-1-hept, (2R)-2-yl
11199982(1S)-1-ol, (Z)-en, (1R,7aR)-7a-meth,-1-hept, (2R)-2-yl
ChemSpider 780984832524 (E)-en9660762 (1S)-1-ol, (E)-en, (1R,7aR)-7a-meth,-1-hept, (2R)-2-yl9375051 (1S)-1-ol, (Z)-en, (1R,7aR)-7a-meth,-1-hept, (2R)-2-yl
SMILES
EINECS 241-561-3
MeSH Previtamin+D(3)
性质
化学式 C27H44O
摩尔质量 384.64 g·mol−1
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

前维生素D3(英語:Previtamin D3)是胆钙化醇维生素D3)合成的中间产物,由皮肤表皮中的7-脱氢胆固醇紫外线(主要是295nm - 300nm 的UV-B)照射下开环生成[1][2][3][4]

参考文献

  1. ^ MacLaughlin JA, Anderson RR, Holick MF. Spectral character of sunlight modulates photosynthesis of previtamin D3 and its photoisomers in human skin. Science. May 1982, 216 (4549): 1001–3. Bibcode:1982Sci...216.1001M. PMID 6281884. doi:10.1126/science.6281884. 
  2. ^ Webb AR. Who, what, where and when-influences on cutaneous vitamin D synthesis. Progress in Biophysics and Molecular Biology. September 2006, 92 (1): 17–25. PMID 16766240. doi:10.1016/j.pbiomolbio.2006.02.004. 
  3. ^ Pope SJ, Holick MF, Mackin S, Godar DE. Action spectrum conversion factors that change erythemally weighted to previtamin D3-weighted UV doses. Photochemistry and Photobiology. 2008, 84 (5): 1277–83. PMID 18513232. doi:10.1111/j.1751-1097.2008.00373.x. 
  4. ^ Sayre RM, Dowdy JC. Darkness at noon: sunscreens and vitamin D3. Photochemistry and Photobiology. 2007, 83 (2): 459–63. PMID 17115796. doi:10.1562/2006-06-29-RC-956. 
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前维生素D3
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