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CAS 104-94-9
1-Amino-4-methoxybenzene4-Methoxyphenylamine4-methoxyaniline
Codes: (II)101438-4-a, (II)101438-13-a, (II)101438-70-a, Imipenem-015, (II)140605-24-a, POSA-041
Application context (from source-drug indications)
Breast cancerPaclitaxel/Encequidar mesylateAdenocarcinomaPaclitaxel/Encequidar mesylateAngiosarcomaPaclitaxel/Encequidar mesylateSolid tumourPaclitaxel/Encequidar mesylateBacterial pneumoniaCilastatin Sodium/Imipenem/RelebactamHospital-acquired pneumoniaCilastatin Sodium/Imipenem/RelebactamInfectious diseaseCilastatin Sodium/Imipenem/RelebactamBacteraemiaCilastatin Sodium/Imipenem/RelebactamVentilator-associated pneumoniaCilastatin Sodium/Imipenem/RelebactamHealthcare-associated pneumoniaCilastatin Sodium/Imipenem/RelebactamBladder 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)CandidiasisPosaconazoleAspergillus infectionPosaconazoleFungal infectionPosaconazoleOral candidiasisPosaconazoleCoccidioidomycosisPosaconazoleHistoplasmosisPosaconazolePancreatic cancerPaclitaxelNon-small cell lung cancerPaclitaxelHodgkin's diseasePaclitaxelSeminomaPaclitaxelOvarian cancerPaclitaxelBreast cancerPaclitaxelBacterial infectionImipenemGonorrhoeaImipenemBacillus anthracis infectionImipenemNon-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）
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Paclitaxel/Encequidar mesylate | Tier C — Watch / trade | - |
| Cilastatin Sodium/Imipenem/Relebactam | Tier C — Watch / trade | - |
| Docetaxel polymeric micelle (Samyang Biopharmaceuticals) | Tier C — Watch / trade | - |
| Posaconazole | Tier C — Watch / trade | - |
| Paclitaxel | Tier B — Position early | - |
| Imipenem | Tier C — Watch / trade | - |
| Docetaxel （Beihai） | 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-Bromophenyl)formaldehyde→1-Amino-4-methoxybenzene→(NZ)-N-[(3-bromophenyl)methylidene]-4-methoxyaniline→(2-Chloranyl-2-oxidanylideneethyl) ethanoate→alpha-Chlorobenzaldehyde→(2S,3R)-2-(3-bromophenyl)-1-(4-methoxyphenyl)-4-oxoazetidin-3-yl acetate→(2S,3R)-2-(3-bromophenyl)-4-oxoazetidin-3-yl acetate→(3R,4S)-4-(3-bromophenyl)-3-hydroxyazetidin-2-one→(3R,4S)-4-(3-bromophenyl)-3-[(triethylsilyl)oxy]azetidin-2-one→(3R,4S)-1-benzoyl-4-(3-bromophenyl)-3-[(triethylsilyl)oxy]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→(2alpha,5beta,7beta,10beta,13alpha)-4,10-Bis(acetyloxy)-1,7,13-trihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetyloxy)-15-{[(2R,3S)-3-(3-bromophenyl)-3-(phenylformamido)-2-[(triethylsilyl)oxy]propanoyl]oxy}-1-hydroxy-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)-15-{[(2R,3S)-3-(3-bromophenyl)-2-hydroxy-3-(phenylformamido)propanoyl]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)-4,10-Bis(acetyloxy)-13-[[(2R,3S)-3-benzamido-2-hydroxy-3-(3-tritiophenylpropanoyl]oxy]-1,7-dihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate
(3R,4S)-4-Phenyl-3-[(triethylsilyl)oxy]azetidin-2-one→(NZ)-4-Methoxy-N-(phenylmethylidene)aniline→1-Amino-4-methoxybenzene→1-Benzoyl-3(R)-(1-ethoxyethoxy)-4(S)-phenylazetidin-2-one→alpha-Chlorobenzaldehyde→Benzaldehyde→cis-1-(4-Methoxyphenyl)-2-oxo-4-phenylazetidin-3-yl acetate→cis-2-Oxo-4-phenylazetidin-3-yl acetate→(3R,4S)-1-Benzoyl-4-phenyl-3-(triethylsiloxy)azetidin-2-one→(3R,4S)-3-(1-Ethoxyethoxy)-4-phenylazetidin-2-one→(3R,4S)-3-hydroxy-4-phenylazetidin-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→(2-Chloranyl-2-oxidanylideneethyl) ethanoate→(2alpha,5beta,7beta,10beta,13alpha)-4,10-Bis(acetyloxy)-1-hydroxy-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→(2alpha,5beta,7beta,10beta,13alpha)-4,10-Diacetoxy-13-[[(2R,3S)-3-(benzoylamino)-2-(1-ethoxyethoxy)-3-phenylpropanoyl]oxy]-1-hydroxy-9-oxo-7-[(triethylsilyl)oxy]-5,20-epoxytax-11-en-2-yl benzoate
Benzaldehyde→1-Amino-4-methoxybenzene→(NZ)-4-Methoxy-N-(phenylmethylidene)aniline→(2-Chloranyl-2-oxidanylideneethyl) ethanoate→(3R,4S)-1-(4-Methoxyphenyl)-4-phenyl-3-[[tri(propan-2-yl)silyl]oxy]azetidin-2-one→1-(4-Methoxyphenyl)-2-oxo-4-phenylazetidin-3-yl acetate→3-Hydroxy-1-(4-methoxyphenyl)-4-phenylazetidin-2-one→1-(4-Methoxyphenyl)-4-phenylazetidine-2,3-dione→(+)-3-Hydroxy-1-(4-methoxyphenyl)-4-phenylazetidin-2-one→(3R,4S)-4-Phenyl-3-{[tris(propan-2-yl)silyl]oxy}azetidin-2-one→alpha-Chlorobenzaldehyde→(3R,4S)-1-Benzoyl-4-phenyl-3-[[tri(propan-2-yl)silyl]oxy]azetidin-2-one
4-Methoxyphenylamine→1-Amino-4-fluorobenzene→4-Bromophenylamine→4-Ethoxyphenylamine→omega-Bromoacetophenone→Chloroacetyl chloride→2-Iodo-1-(3-methoxyphenyl)ethanone→1-Bromo-3,3-dimethylbutan-2-one<-fgf->→2-[(4-Methoxyphenyl)amino]-1-phenylethanone→1-[(4-Methoxyphenyl)amino]acetone→1-[(4-Fluorophenyl)amino]acetone→2-[(4-Bromophenyl)amino]-1-(3-methoxyphenyl)ethanone→1-[(4-Ethoxyphenyl)amino]-3,3-dimethylbutan-2-one→(3S)-4-Benzoyl-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-1-(4-fluorophenyl)azetidin-2-one→(3S)-1-(4-Bromophenyl)-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-4-(3-methoxybenzoyl)azetidin-2-one→(3S)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-4-(2,2-dimethylpropanoyl)-1-(4-ethoxyphenyl)azetidin-2-one→(2R,3R)-3-Methyloxirane-2-carboxylic acid→L-Threonine→(2R,3R)-N-(4-Methoxyphenyl)-3-methyl-N-(2-oxo-2-phenylethyl)oxirane-2-carboxamide→(2R,3R)-N-(4-Methoxyphenyl)-3-methyl-N-(2-oxopropyl)oxirane-2-carboxamide→(2R,3R)-N-(4-Fluorophenyl)-3-methyl-N-(2-oxopropyl)oxirane-2-carboxamide→(2R,3R)-N-(4-Bromophenyl)-N-[2-(3-methoxyphenyl)-2-oxoethyl]-3-methyloxirane-2-carboxamide→(2R,3R)-N-(3,3-Dimethyl-2-oxobutyl)-N-(4-ethoxyphenyl)-3-methyloxirane-2-carboxamide→(3S)-4-Benzoyl-3-[(1R)-1-hydroxyethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-3-[(1R)-1-hydroxyethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-1-(4-fluorophenyl)-3-[(1R)-1-hydroxyethyl]azetidin-2-one→(3S)-1-(4-Bromophenyl)-3-[(1R)-1-hydroxyethyl]-4-(3-methoxybenzoyl)azetidin-2-one→(3S)-4-(2,2-Dimethylpropanoyl)-1-(4-ethoxyphenyl)-3-[(1R)-1-hydroxyethyl]azetidin-2-one→(1E)-1-[(4-Methoxyphenyl)imino]acetone→S-Pyridin-2-yl (3R)-3-[[tert-butyl(dimethyl)silyl]oxy]butanethioate→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)-4-oxoazetidin-2-yl acetate→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-fluorophenyl)-4-oxoazetidin-2-yl acetate→(2R,3R)-1-(4-Bromophenyl)-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-4-oxoazetidin-2-yl acetate→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-ethoxyphenyl)-4-oxoazetidin-2-yl acetate→(2S,3S)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)-4-oxoazetidine-2-carboxylic acid→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-4-oxoazetidin-2-yl acetate
Benzaldehyde→1-Amino-4-methoxybenzene→2-Hydroxy-1-phenylethanone→2-Hydroxyacetic acid methyl ester→(2R,3S)-2-Hydroxy-3-[(4-methoxyphenyl)amino]-1,3-diphenylpropan-1-one→Methyl (2R,3S)-2-hydroxy-3-[(4-methoxyphenyl)amino]-3-phenylpropanoate→(2R,3S)-3-Phenylisoserine methyl ester→(2R,3S)-3-Amino-2-hydroxy-3-phenylpropanoic acid methyl ester hydrochloride→(4S,5R)-3-(4-Methoxyphenyl)-4-phenyl-5-(phenylcarbonyl)-1,3-oxazolidin-2-one→Methyl (4S,5R)-3-(4-methoxyphenyl)-2-oxo-4-phenyl-1,3-oxazolidine-5-carboxylate→(4S,5R)-4-Phenyl-5-(phenylcarbonyl)-1,3-oxazolidin-2-one→Methyl (4S,5R)-2-oxo-4-phenyl-1,3-oxazolidine-5-carboxylate→Phenyl (4S,5R)-2-oxo-4-phenyl-1,3-oxazolidine-5-carboxylate→(2R,3S)-3-Amino-2-hydroxy-3-phenylpropanoic acid→Bis(1,1-dimethylethyl) dicarbonoate→3(S)-(tert-Butoxycarbonylamino)-2(R)-hydroxy-3-phenylpropionic acid methyl ester→Methyl (2R,3S)-2-hydroxy-3-phenyl-3-[[(1S)-1-phenylethyl]amino]propanoate
((3S,5R)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)methyl 4-methylbenzenesulfonate→4-(4-(4-nitrophenyl)piperazin-1-yl)phenol→4-(4-(4-(((3R,5R)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)methoxy)phenyl)piperazin-1-yl)aniline→phenyl carbonochloridate→phenyl (4-(4-(4-(((3R,5R)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)methoxy)phenyl)piperazin-1-yl)phenyl)carbamate→N'-((2S,3S)-2-(benzyloxy)pentan-3-yl)formohydrazide→4-(4-(4-(4-(((3R,5R)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-2-((2S,3S)-2-(benzyloxy)pentan-3-yl)-2,4-dihydro-3H-1,2,4-triazol-3-one→4-(4-(4-aminophenyl)piperazin-1-yl)phenol→4-methoxyaniline→N,N-bis(2-chloroethyl)-4-nitroaniline→1-(4-methoxyphenyl)-4-(4-nitrophenyl)piperazine
(3-Bromophenyl)formaldehyde→1-Amino-4-methoxybenzene→(NZ)-N-[(3-bromophenyl)methylidene]-4-methoxyaniline→(2-Chloranyl-2-oxidanylideneethyl) ethanoate→alpha-Chlorobenzaldehyde→(2S,3R)-2-(3-bromophenyl)-1-(4-methoxyphenyl)-4-oxoazetidin-3-yl acetate→(2S,3R)-2-(3-bromophenyl)-4-oxoazetidin-3-yl acetate→(3R,4S)-4-(3-bromophenyl)-3-hydroxyazetidin-2-one→(3R,4S)-4-(3-bromophenyl)-3-[(triethylsilyl)oxy]azetidin-2-one→(3R,4S)-1-benzoyl-4-(3-bromophenyl)-3-[(triethylsilyl)oxy]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→(2alpha,5beta,7beta,10beta,13alpha)-4,10-Bis(acetyloxy)-1,7,13-trihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate→(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-bis(acetyloxy)-15-{[(2R,3S)-3-(3-bromophenyl)-3-(phenylformamido)-2-[(triethylsilyl)oxy]propanoyl]oxy}-1-hydroxy-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)-15-{[(2R,3S)-3-(3-bromophenyl)-2-hydroxy-3-(phenylformamido)propanoyl]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)-4,10-Bis(acetyloxy)-13-[[(2R,3S)-3-benzamido-2-hydroxy-3-(3-tritiophenylpropanoyl]oxy]-1,7-dihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate
(3R,4S)-4-Phenyl-3-[(triethylsilyl)oxy]azetidin-2-one→(NZ)-4-Methoxy-N-(phenylmethylidene)aniline→1-Amino-4-methoxybenzene→1-Benzoyl-3(R)-(1-ethoxyethoxy)-4(S)-phenylazetidin-2-one→alpha-Chlorobenzaldehyde→Benzaldehyde→cis-1-(4-Methoxyphenyl)-2-oxo-4-phenylazetidin-3-yl acetate→cis-2-Oxo-4-phenylazetidin-3-yl acetate→(3R,4S)-1-Benzoyl-4-phenyl-3-(triethylsiloxy)azetidin-2-one→(3R,4S)-3-(1-Ethoxyethoxy)-4-phenylazetidin-2-one→(3R,4S)-3-hydroxy-4-phenylazetidin-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→(2-Chloranyl-2-oxidanylideneethyl) ethanoate→(2alpha,5beta,7beta,10beta,13alpha)-4,10-Bis(acetyloxy)-1-hydroxy-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→(2alpha,5beta,7beta,10beta,13alpha)-4,10-Diacetoxy-13-[[(2R,3S)-3-(benzoylamino)-2-(1-ethoxyethoxy)-3-phenylpropanoyl]oxy]-1-hydroxy-9-oxo-7-[(triethylsilyl)oxy]-5,20-epoxytax-11-en-2-yl benzoate
Benzaldehyde→1-Amino-4-methoxybenzene→(NZ)-4-Methoxy-N-(phenylmethylidene)aniline→(2-Chloranyl-2-oxidanylideneethyl) ethanoate→(3R,4S)-1-(4-Methoxyphenyl)-4-phenyl-3-[[tri(propan-2-yl)silyl]oxy]azetidin-2-one→1-(4-Methoxyphenyl)-2-oxo-4-phenylazetidin-3-yl acetate→3-Hydroxy-1-(4-methoxyphenyl)-4-phenylazetidin-2-one→1-(4-Methoxyphenyl)-4-phenylazetidine-2,3-dione→(+)-3-Hydroxy-1-(4-methoxyphenyl)-4-phenylazetidin-2-one→(3R,4S)-4-Phenyl-3-{[tris(propan-2-yl)silyl]oxy}azetidin-2-one→alpha-Chlorobenzaldehyde→(3R,4S)-1-Benzoyl-4-phenyl-3-[[tri(propan-2-yl)silyl]oxy]azetidin-2-one
4-Methoxyphenylamine→1-Amino-4-fluorobenzene→4-Bromophenylamine→4-Ethoxyphenylamine→omega-Bromoacetophenone→Chloroacetyl chloride→2-Iodo-1-(3-methoxyphenyl)ethanone→1-Bromo-3,3-dimethylbutan-2-one<-fgf->→2-[(4-Methoxyphenyl)amino]-1-phenylethanone→1-[(4-Methoxyphenyl)amino]acetone→1-[(4-Fluorophenyl)amino]acetone→2-[(4-Bromophenyl)amino]-1-(3-methoxyphenyl)ethanone→1-[(4-Ethoxyphenyl)amino]-3,3-dimethylbutan-2-one→(3S)-4-Benzoyl-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-1-(4-fluorophenyl)azetidin-2-one→(3S)-1-(4-Bromophenyl)-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-4-(3-methoxybenzoyl)azetidin-2-one→(3S)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-4-(2,2-dimethylpropanoyl)-1-(4-ethoxyphenyl)azetidin-2-one→(2R,3R)-3-Methyloxirane-2-carboxylic acid→L-Threonine→(2R,3R)-N-(4-Methoxyphenyl)-3-methyl-N-(2-oxo-2-phenylethyl)oxirane-2-carboxamide→(2R,3R)-N-(4-Methoxyphenyl)-3-methyl-N-(2-oxopropyl)oxirane-2-carboxamide→(2R,3R)-N-(4-Fluorophenyl)-3-methyl-N-(2-oxopropyl)oxirane-2-carboxamide→(2R,3R)-N-(4-Bromophenyl)-N-[2-(3-methoxyphenyl)-2-oxoethyl]-3-methyloxirane-2-carboxamide→(2R,3R)-N-(3,3-Dimethyl-2-oxobutyl)-N-(4-ethoxyphenyl)-3-methyloxirane-2-carboxamide→(3S)-4-Benzoyl-3-[(1R)-1-hydroxyethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-3-[(1R)-1-hydroxyethyl]-1-(4-methoxyphenyl)azetidin-2-one→(3S)-4-Acetyl-1-(4-fluorophenyl)-3-[(1R)-1-hydroxyethyl]azetidin-2-one→(3S)-1-(4-Bromophenyl)-3-[(1R)-1-hydroxyethyl]-4-(3-methoxybenzoyl)azetidin-2-one→(3S)-4-(2,2-Dimethylpropanoyl)-1-(4-ethoxyphenyl)-3-[(1R)-1-hydroxyethyl]azetidin-2-one→(1E)-1-[(4-Methoxyphenyl)imino]acetone→S-Pyridin-2-yl (3R)-3-[[tert-butyl(dimethyl)silyl]oxy]butanethioate→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)-4-oxoazetidin-2-yl acetate→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-fluorophenyl)-4-oxoazetidin-2-yl acetate→(2R,3R)-1-(4-Bromophenyl)-3-[(1R)-1-[[tert-butyl(dimethyl)silyl]oxy]ethyl]-4-oxoazetidin-2-yl acetate→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-ethoxyphenyl)-4-oxoazetidin-2-yl acetate→(2S,3S)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-1-(4-methoxyphenyl)-4-oxoazetidine-2-carboxylic acid→(2R,3R)-3-[(1R)-1-[[tert-Butyl(dimethyl)silyl]oxy]ethyl]-4-oxoazetidin-2-yl acetate
Benzaldehyde→1-Amino-4-methoxybenzene→2-Hydroxy-1-phenylethanone→2-Hydroxyacetic acid methyl ester→(2R,3S)-2-Hydroxy-3-[(4-methoxyphenyl)amino]-1,3-diphenylpropan-1-one→Methyl (2R,3S)-2-hydroxy-3-[(4-methoxyphenyl)amino]-3-phenylpropanoate→(2R,3S)-3-Phenylisoserine methyl ester→(2R,3S)-3-Amino-2-hydroxy-3-phenylpropanoic acid methyl ester hydrochloride→(4S,5R)-3-(4-Methoxyphenyl)-4-phenyl-5-(phenylcarbonyl)-1,3-oxazolidin-2-one→Methyl (4S,5R)-3-(4-methoxyphenyl)-2-oxo-4-phenyl-1,3-oxazolidine-5-carboxylate→(4S,5R)-4-Phenyl-5-(phenylcarbonyl)-1,3-oxazolidin-2-one→Methyl (4S,5R)-2-oxo-4-phenyl-1,3-oxazolidine-5-carboxylate→Phenyl (4S,5R)-2-oxo-4-phenyl-1,3-oxazolidine-5-carboxylate→(2R,3S)-3-Amino-2-hydroxy-3-phenylpropanoic acid→Bis(1,1-dimethylethyl) dicarbonoate→3(S)-(tert-Butoxycarbonylamino)-2(R)-hydroxy-3-phenylpropionic acid methyl ester→Methyl (2R,3S)-2-hydroxy-3-phenyl-3-[[(1S)-1-phenylethyl]amino]propanoate
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