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CAS 2766607-43-4
3-(3,3,7,7,9-Pentamethyl-1,5-dioxaspiro[5.5]undec-8-en-8-yl)prop-2-yn-1-ol
Codes：(III)101438-75-a
Application context (from source-drug indications)
乳腺癌Paclitaxel/Encequidar mesylate腺癌Paclitaxel/Encequidar mesylate血管肉瘤Paclitaxel/Encequidar mesylate实体瘤Paclitaxel/Encequidar mesylate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Paclitaxel/Encequidar mesylatePaclitaxel/Encequidar mesylate | 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.
3,3,7,7,9-Pentamethyl-1,5-dioxaspiro[5.5]undec-8-en-8-yl trifluoromethanesulfonate→3-Hydroxy-1-propyne→3-(3,3,7,7,9-Pentamethyl-1,5-dioxaspiro[5.5]undec-8-en-8-yl)prop-2-yn-1-ol→3-[(1Z)-3-Hydroxyprop-1-en-1-yl]-2,2,4-trimethylcyclohex-3-en-1-one→(R*)-[(1R*)-3-(Z)-[3-[[tert-Butyl(dimethyl)silyl]oxy]prop-1-en-1-yl]-2,2,4-trimethyl-1-[(trimethylsilyl)oxy]cyclohex-3-en-1-yl](6-ethenyl-6-methylcyclohex-1-en-1-yl)methanol→3-[(1Z)-3-[[tert-Butyl(dimethyl)silyl]oxy]prop-1-en-1-yl]-2,2,4-trimethylcyclohex-3-en-1-one→3-[(1Z)-3-[[tert-Butyl(dimethyl)silyl]oxy]prop-1-en-1-yl]-2,2,4-trimethyl-1-[(trimethylsilyl)oxy]cyclohex-3-ene-1-carbonitrile→3-[(1Z)-3-[[tert-Butyl(dimethyl)silyl]oxy]prop-1-en-1-yl]-2,2,4-trimethyl-1-[(trimethylsilyl)oxy]cyclohex-3-ene-1-carbaldehyde→N'-(2-Ethenyl-2-methylcyclohexylidene)-2,4,6-tri(propan-2-yl)benzene-1-sulfonohydrazide→(1S*)-1-[(S*)-(6-Ethenyl-6-methylcyclohex-1-en-1-yl)(hydroxy)methyl]-3-[3-hydroxyprop-1-en-1-yl]-2,2,4-trimethylcyclohex-3-en-1-ol→3-[(4S*,5S*)-4-(6-Ethenyl-6-methylcyclohex-1-en-1-yl)-6,6,8-trimethyl-2-oxo-1,3-dioxaspiro[4.5]dec-7-en-7-yl]prop-2-en-1-yl 1H-imidazole-1-carboxylate→(4S*,5S*)-4-(6-Ethenyl-6-methylcyclohex-1-en-1-yl)-7-[3-hydroxyprop-1-en-1-yl]-6,6,8-trimethyl-1,3-dioxaspiro[4.5]dec-7-en-2-one→(4S*,5S*)-4-(6-Ethenyl-6-methylcyclohex-1-en-1-yl)-6,6,8-trimethyl-7-[(1E)-3-[(prop-2-en-1-yl)oxy]prop-1-en-1-yl]-1,3-dioxaspiro[4.5]dec-7-en-2-one
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