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CAS 29790-29-2
2,4,4-Trimethyl-3-[(1E)-3-oxobut-1-en-1-yl]cyclohex-2-en-1-one
Codes: Astaxanthin-002
Application context (from source-drug indications)
营养失调AstaxanthinKnee arthritisAstaxanthinDiabetic neuropathyAstaxanthinStrokeAstaxanthin
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Astaxanthin | Tier C — Watch / trade | - |
Position in synthesis routes (up/downstream chain)
Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.
(E)-beta-Ionone→2,4,4-Trimethyl-3-[(1E)-3-oxobut-1-en-1-yl]cyclohex-2-en-1-one→2,4,4-Trimethyl-3-[(E)-2-(2-methyl-1,3-dioxolan-2-yl)ethenyl]cyclohex-2-en-1-one→Trimethyl([4,4,6-trimethyl-5-[(E)-2-(2-methyl-1,3-dioxolan-2-yl)ethenyl]cyclohexa-1,5-dien-1-yl]oxy)silane→6-Hydroxy-2,4,4-trimethyl-3-[(E)-2-(2-methyl-1,3-dioxolan-2-yl)ethenyl]cyclohex-2-en-1-one→3-Hydroxy-4-oxo-beta-ionone→4-Chlorobenzoic acid chloride→3,5,5-Trimethyl-2-oxo-4-[(1E)-3-oxobut-1-en-1-yl]cyclohex-3-en-1-yl 4-chlorobenzoate→(Ethynyl)magnesium bromide→4-[(1E)-3-Hydroxy-3-methylpent-1-en-4-yn-1-yl]-3,5,5-trimethyl-2-oxocyclohex-3-en-1-yl 4-chlorobenzoate→4-[(1E)-3-Hydroxy-3-methylpenta-1,4-dien-1-yl]-3,5,5-trimethyl-2-oxocyclohex-3-en-1-yl 4-chlorobenzoate→6-Hydroxy-3-[(1E)-3-hydroxy-3-methylpenta-1,4-dien-1-yl]-2,4,4-trimethylcyclohex-2-en-1-one→3-[(1E,3E)-5-Bromo-3-methylpenta-1,3-dien-1-yl]-6-hydroxy-2,4,4-trimethylcyclohex-2-en-1-one→[(2E,4E)-5-(4-Hydroxy-2,6,6-trimethyl-3-oxocyclohex-1-en-1-yl)-3-methylpenta-2,4-dien-1-yl](triphenyl)phosphanium bromide→(2E,4E,6E)-2,7-Dimethylocta-2,4,6-trienedial
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