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Previtamin D3/ja: Difference between revisions

Previtamin D3/ja
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{{DISPLAYTITLE:プレビタミンD<sub>3</sub>}}
{{DISPLAYTITLE:Previtamin D<sub>3</sub>}}
{{Chembox
{{Chembox
| Name = Previtamin D<sub>3</sub>
| Name = Previtamin D<sub>3</sub>
| ImageFile = Previtamin D3.svg
| ImageFile = Previtamin D3.svg
| ImageFile_Ref = {{Chemboximage|correct|??}}
| ImageFile_Ref = {{Chemboximage|correct|??}}
| ImageName = Stereo skeletal formula of previtamin D<sub>3</sub> ((1R)-1-ol, (Z)-en, (1R,3aR,7aR)-7a-meth,-1-hept,-3a-hydro, (2R)-2-yl)
| ImageName = プレビタミンD<sub>3</sub>の立体骨格式 ((1R)-1-ol, (Z)-en, (1R,3aR,7aR)-7a-meth,-1-hept,-3a-hydro, (2R)-2-yl)
| IUPACName = (3''S'',6''Z'')-9,10-Secocholesta-5(10),6,8-trien-3-ol
| IUPACName = (3''S'',6''Z'')-9,10-Secocholesta-5(10),6,8-trien-3-ol
| SystematicName = (1''S'')-4-Methyl-3-[(''Z'')-2-<nowiki/>{(1''R'',3a''R'',7a''R'')-7a-methyl-1-[(2''R'')-6-methylheptan-2-yl]-2,3,3a,6,7,7a-hexahydro-1''H''-inden-4-yl}ethen-1-yl]cyclohex-3-en-1-ol
| SystematicName = (1''S'')-4-Methyl-3-[(''Z'')-2-<nowiki/>{(1''R'',3a''R'',7a''R'')-7a-methyl-1-[(2''R'')-6-methylheptan-2-yl]-2,3,3a,6,7,7a-hexahydro-1''H''-inden-4-yl}ethen-1-yl]cyclohex-3-en-1-ol
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'''Previtamin D<sub>3</sub>''' is an intermediate in the production of [[cholecalciferol]] ([[vitamin D]]<sub>3</sub>).
'''プレビタミンD<sub>3</sub>'''は、[[cholecalciferol/ja|コレカルシフェロール]]（[[vitamin D/ja|ビタミンD]]<sub>3</sub>）生成の中間体である。  
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[[UV light/ja|紫外線]]、特に波長295～300nmのUVB光が皮膚の[[epidermis_(skin)/ja|表皮層]]にある[[7-dehydrocholesterol/ja|7-デヒドロコレステロール]]に作用することによって形成される。
It is formed by the action of [[UV light]], most specifically UVB light of wavelengths between 295 and 300 nm, acting on [[7-dehydrocholesterol]] in the [[epidermis_(skin)|epidermal layers]] of the skin.
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[[steroid/ja|ステロイド]]核構造のB環が開いて[[secosteroid/ja|セコステロイド]]となる。これはその後、自発的な[[isomerization/ja|異性化]]を経て、活性型ビタミンDである[[calcitriol/ja|カルシトリオール]]の[[prohormone/ja|プロホルモン]]であるコレカルシフェロールとなる。
The B ring of the [[steroid]] nucleus structure is broken open, making a [[secosteroid]]. This then undergoes spontaneous [[isomerization]] into cholecalciferol, the [[prohormone]] of the active form of vitamin D, [[calcitriol]].
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プレビタミンD<sub>3</sub>の合成は、[[sunscreens/ja|日焼け止め]]によって効果的に阻害される。
The synthesis of previtamin D<sub>3</sub> is blocked effectively by [[sunscreens]].
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== インタラクティブ経路マップ==
== Interactive pathway map==
{{VitaminDSynthesis_WP1531|highlight=Previtamin_D3}}
{{VitaminDSynthesis_WP1531|highlight=Previtamin_D3}}
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{{Vitamin/ja}}
{{Vitamin}}
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{{二次利用|date=20 November 2023}}
[[Category:Vitamin D]]
[[Category:Vitamin D]]
[[Category:Secosteroids]]
[[Category:Secosteroids]]
[[Category:Indanes]]
[[Category:Indanes]]
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Retrieved from "https://wiki.tiffa.net/wiki/Previtamin_D3/ja"