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CAS 165067-89-0
(3S,4S)-4-phenyl-3-[(triethylsilyl)oxy]azetidin-2-one
Codes：(XII)101438-17-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.
Methyl L-threoninate hydrogen chloride→methyl (2S,3R)-2-amino-3-{[(tert-butoxy)diphenylsilyl]oxy}butanoate→[formyl-[14]C]Benzaldehyde→methyl (2S,3R)-3-[(tert-butyldiphenylsilyl)oxy]-2-[(E)-(phenylmethylidene)amino]butanoate→methyl 2-[(3S,4S)-3-(acetyloxy)-2-oxo-4-phenylazetidin-1-yl]-2-oxoacetate→(2-Chloranyl-2-oxidanylideneethyl) ethanoate→methyl (2S,3R)-2-[(3R,4S)-3-(acetyloxy)-2-oxo-4-phenylazetidin-1-yl]-3-[(tert-butyldiphenylsilyl)oxy]butanoate→methyl (2S,3R)-2-[(3R,4S)-3-(acetyloxy)-2-oxo-4-phenylazetidin-1-yl]-3-hydroxybutanoate→methyl (2Z)-2-[(3R,4S)-3-(acetyloxy)-2-oxo-4-phenylazetidin-1-yl]but-2-enoate→methyl 2-[(3R,4S)-3-(acetyloxy)-2-oxo-4-phenylazetidin-1-yl]-2-oxoacetate→(3S,4S)-2-oxo-4-phenylazetidin-3-yl acetate→(3S,4S)-3-hydroxy-4-phenylazetidin-2-one→(3S,4S)-4-phenyl-3-[(triethylsilyl)oxy]azetidin-2-one→alpha-Chlorobenzaldehyde→(3R,4S)-1-Benzoyl-4-phenyl-3-(triethylsiloxy)azetidin-2-one→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-Bis(acetyloxy)-1,15-dihydroxy-10,14,17,17-tetramethyl-11-oxo-9-[(triethylsilyl)oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetyloxy)-1-hydroxy-10,14,17,17-tetramethyl-11-oxo-15-{[(2S,3S)-3-phenyl-3-(phenylformamido)-2-[(triethylsilyl)oxy]propanoyl]oxy}-9-[(triethylsilyl)oxy]-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→[2aR-(2aalpha,4beta,4abeta,6beta,9alpha(2R,3S),11beta,12alpha,12aalpha,12balpha]-6-Acetoxy-9-[3-(4-deuterobenzamido)-2-hydroxy-3-phenylpropionyloxy]-12-(benzoyloxy)-12b-(trideuteroacetoxy)-4,11-dihydroxy-4a,8,13,13-tetramethyl-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-1H-7,11-methanocyclodeca[3,4]benz[1,2-b]oxet- 5-one→(2alpha,5beta,7beta,10beta,13alpha)-4,10-Bis(acetyloxy)-1,7,13-trihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate
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