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CAS 541-16-2
1,3-Bis(1,1-dimethylethyl) propanedioatedi-tert-butyl malonate
Codes: (VI)140605-3-a, RISD-027, PAZU-002
Application context (from source-drug indications)
Bladder cancerDocetaxel polymeric micelle (Samyang Biopharmaceuticals)Head and neck cancerDocetaxel polymeric micelle (Samyang Biopharmaceuticals)Head and neck squamous cell carcinomaDocetaxel polymeric micelle (Samyang Biopharmaceuticals)Solid tumourDocetaxel polymeric micelle (Samyang Biopharmaceuticals)Non-small cell lung cancerDocetaxel （Beihai）Prostate cancerDocetaxel （Beihai）Castration-resistant prostate cancerDocetaxel （Beihai）Breast cancerDocetaxel （Beihai）Head and neck cancerDocetaxel （Beihai）Head and neck squamous cell carcinomaDocetaxel （Beihai）Spinal muscular atrophyRisdiplam肺炎链球菌感染Pazufloxacin MesylateSepsisPazufloxacin MesylateInfectious diseasePazufloxacin MesylateCystitisPazufloxacin Mesylate胆管炎Pazufloxacin MesylateCholecystitisPazufloxacin Mesylate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Docetaxel polymeric micelle (Samyang Biopharmaceuticals) | Tier C — Watch / trade | - |
| Docetaxel （Beihai） | Tier C — Watch / trade | - |
| Risdiplam | Tier B — Position early | - |
| Pazufloxacin 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.
[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→Benzoic acid (2alpha,5beta,7beta,10beta,13alpha)-4,10-diacetoxy-1,7-dihydroxy-13-[2(R)-hydroxy-3(S)-[2-methyl-2(E)-butenoylamino]-3-phenylpropionyloxy]-9-oxo-5,20-epoxytax-11-en-2-yl ester→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetyloxy)-15-{[(2R,3S)-3-(cyclopentylformamido)-2-hydroxy-3-phenylpropanoyl]oxy}-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→(2alpha,5beta,7beta,10beta,13alpha)-4-(Acetyloxy)-13-[[(2R,3S)-3-benzamido-2-hydroxy-3-phenylpropanoyl]oxy]-1,7,10-trihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate→3'-N-Debenzoyl-3'-N-[2-methyl-2(E)-butenamido]paclitaxel→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetyloxy)-15-{[(2R,3S)-3-(cyclopentylformamido)-2-hydroxy-3-phenylpropanoyl]oxy}-1,9,12-trihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→(2alpha,5beta,7beta,10beta,13alpha)-4-(Acetyloxy)-1,10-dihydroxy-9-oxo-13-([(2R,3S)-3-phenyl-3-[(phenylcarbonyl)amino]-2-[(triethylsilyl)oxy]propanoyl]oxy)-7-[(triethylsilyl)oxy]-5,20-epoxytax-11-en-2-yl benzoate→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetyloxy)-1,12-dihydroxy-10,14,17,17-tetramethyl-15-{[(2R,3S)-3-(2-methylbut-2-enamido)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-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-(acetyloxy)-15-{[(2R,3S)-3-(cyclopentylformamido)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-1,12-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-(acetyloxy)-1,12-dihydroxy-10,14,17,17-tetramethyl-11-oxo-15-{[(2R,3S)-3-phenyl-3-[(E)-(phenylmethylidene)amino]-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→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetyloxy)-1,12-dihydroxy-10,14,17,17-tetramethyl-15-{[(2R,3S)-3-[(E)-(2-methylbut-2-en-1-ylidene)amino]-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-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-(acetyloxy)-15-{[(2R,3S)-3-[(E)-(cyclopentylmethylidene)amino]-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-1,12-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-(Acetyloxy)-15-[[(2R,3S)-3-amino-2-hydroxy-3-phenylpropanoyl]oxy]-1,9,12-trihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→1,3-Bis(1,1-dimethylethyl) propanedioate
[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→Benzoic acid (2alpha,5beta,7beta,10beta,13alpha)-4,10-diacetoxy-1,7-dihydroxy-13-[2(R)-hydroxy-3(S)-[2-methyl-2(E)-butenoylamino]-3-phenylpropionyloxy]-9-oxo-5,20-epoxytax-11-en-2-yl ester→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetyloxy)-15-{[(2R,3S)-3-(cyclopentylformamido)-2-hydroxy-3-phenylpropanoyl]oxy}-1,9-dihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→(2alpha,5beta,7beta,10beta,13alpha)-4-(Acetyloxy)-13-[[(2R,3S)-3-benzamido-2-hydroxy-3-phenylpropanoyl]oxy]-1,7,10-trihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate→3'-N-Debenzoyl-3'-N-[2-methyl-2(E)-butenamido]paclitaxel→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetyloxy)-15-{[(2R,3S)-3-(cyclopentylformamido)-2-hydroxy-3-phenylpropanoyl]oxy}-1,9,12-trihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→(2alpha,5beta,7beta,10beta,13alpha)-4-(Acetyloxy)-1,10-dihydroxy-9-oxo-13-([(2R,3S)-3-phenyl-3-[(phenylcarbonyl)amino]-2-[(triethylsilyl)oxy]propanoyl]oxy)-7-[(triethylsilyl)oxy]-5,20-epoxytax-11-en-2-yl benzoate→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetyloxy)-1,12-dihydroxy-10,14,17,17-tetramethyl-15-{[(2R,3S)-3-(2-methylbut-2-enamido)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-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-(acetyloxy)-15-{[(2R,3S)-3-(cyclopentylformamido)-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-1,12-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-(acetyloxy)-1,12-dihydroxy-10,14,17,17-tetramethyl-11-oxo-15-{[(2R,3S)-3-phenyl-3-[(E)-(phenylmethylidene)amino]-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→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4-(acetyloxy)-1,12-dihydroxy-10,14,17,17-tetramethyl-15-{[(2R,3S)-3-[(E)-(2-methylbut-2-en-1-ylidene)amino]-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-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-(acetyloxy)-15-{[(2R,3S)-3-[(E)-(cyclopentylmethylidene)amino]-3-phenyl-2-[(triethylsilyl)oxy]propanoyl]oxy}-1,12-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-(Acetyloxy)-15-[[(2R,3S)-3-amino-2-hydroxy-3-phenylpropanoyl]oxy]-1,9,12-trihydroxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.0(3,10).0(4,7)]heptadec-13-en-2-yl benzoate→1,3-Bis(1,1-dimethylethyl) propanedioate
1-aminocyclopropanecarboxylic acid→ethyl 1-aminocyclopropanecarboxylate hydrochloride→2-chloroacetyl chloride→ethyl 1-(2-chloroacetamido)cyclopropanecarboxylate→7-benzyl-4,7-diazaspiro[2.5]octane-5,8-dione→7-benzyl-4,7-diazaspiro[2.5]octane→tert-butyl 7-benzyl-4,7-diazaspiro[2.5]octane-4-carboxylate→oxalic acid→tert-butyl 4,7-diazaspiro[2.5]octane-4-carboxylate hemioxalate→tert-butyl 4,7-diazaspiro[2.5]octane-4-carboxylate→5-bromo-2-chloropyridine→tert-butyl 7-(6-chloropyridin-3-yl)-4,7-diazaspiro[2.5]octane-4-carboxylate→tert-butyl 7-(6-aminopyridin-3-yl)-4,7-diazaspiro[2.5]octane-4-carboxylate→di-tert-butyl malonate→tert-butyl 7-(2-hydroxy-4-oxo-4H-pyrido[1,2-a]pyrimidin-7-yl)-4,7-diazaspiro[2.5]octane-4-carboxylate→tert-butyl 7-(4-oxo-2-(tosyloxy)-4H-pyrido[1,2-a]pyrimidin-7-yl)-4,7-diazaspiro[2.5]octane-4-carboxylate→2,8-dimethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-b]pyridazine→tert-butyl 7-(2-(2,8-dimethylimidazo[1,2-b]pyridazin-6-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidin-7-yl)-4,7-diazaspiro[2.5]octane-4-carboxylate→6-chloropyridazin-3-amine→4-bromo-6-chloropyridazin-3-amine→6-chloro-4-methylpyridazin-3-amine→isopropyl acetate→6-chloro-2,8-dimethylimidazo[1,2-b]pyridazine
ethyl 2,3,4,5-tetrafluorobenzoate→di-tert-butyl malonate→2-(4-(ethoxycarbonyl)-2,3,6-trifluorophenyl)acetic acid→ethyl 4-(2-(benzhydryloxy)-2-oxoethyl)-2,3,5-trifluorobenzoate→ethyl 4-(1-(benzhydryloxy)-3-hydroxy-1-oxopropan-2-yl)-2,3,5-trifluorobenzoate→ethyl 4-(3-(benzhydryloxy)-3-oxoprop-1-en-2-yl)-2,3,5-trifluorobenzoate→ethyl 4-(1-((benzhydryloxy)carbonyl)cyclopropyl)-2,3,5-trifluorobenzoate→1-(4-(ethoxycarbonyl)-2,3,6-trifluorophenyl)cyclopropane-1-carboxylic acid→ethyl 4-(1-(((benzyloxy)carbonyl)amino)cyclopropyl)-2,3,5-trifluorobenzoate→4-(1-(((benzyloxy)carbonyl)amino)cyclopropyl)-2,3,5-trifluorobenzoic acid→3-ethoxy-3-oxopropanoic acid→CAS→(S)-2-aminopropan-1-ol→ethyl (S,Z)-2-(4-(1-(((benzyloxy)carbonyl)amino)cyclopropyl)-2,3,5-trifluorobenzoyl)-3-((1-hydroxypropan-2-yl)amino)acrylate→ethyl (S)-10-(1-(((benzyloxy)carbonyl)amino)cyclopropyl)-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate→(S)-10-(1-(((benzyloxy)carbonyl)amino)cyclopropyl)-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid→(S)-10-(1-aminocyclopropyl)-9-fluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid hydrochloride
Intermediates available on this site
Side-by-side comparison of all listed offers on this CAS; price bands are list-price ranges, final price subject to RFQ confirmation.
| Supplier | Product | Price band | MOQ | Lead time | Qualifications | Action |
|---|---|---|---|---|---|---|
| Qualified Partner — East China API Works | 7-fluoro-2-hydroxy-4H-pyrido[1,2-a]pyrimidin-4-one Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Nantong cGMP Site | 4-Boc-4,7-diazaspiro[2.5]octane Pharmaceutical Intermediates | On request | On request | On request | — | |
| Unibest Taizhou GMP-like Site | 2,8-Dimethyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)imidazo[1,2-b]pyridazine Pharmaceutical Intermediates | On request | On request | On request | — |
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