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CAS 1442373-66-1
Prop-2-en-1-yl S-(acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteinyl-L-prolinate
Codes: Atosiban-113
Application context (from source-drug indications)
产科分娩（早产）Atosiban acetate早产（孕37周前）Atosiban acetateEndometriosisAtosiban acetate
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Atosiban acetate | 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 S-(acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteinyl-L-prolinate→Prop-2-en-1-yl S-(acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteinyl-L-prolinate→Methyl S-(acetamidomethyl)-L-cysteinyl-L-prolinate→Prop-2-en-1-yl S-(acetamidomethyl)-L-cysteinyl-L-prolinate→N2-(tert-Butoxycarbonyl)-N-(triphenylmethyl)-L-asparagine→Methyl N2-(tert-butoxycarbonyl)-N-(triphenylmethyl)-L-asparaginyl-S-(acetamidomethyl)-L-cysteinyl-L-prolinate→Prop-2-en-1-yl N2-(ethoxycarbonyl)-N-(triphenylmethyl)-L-asparaginyl-S-(acetamidomethyl)-L-cysteinyl-L-prolinate→Trifluoroacetic acid methyl N-(triphenylmethyl)-L-asparaginyl-S-(acetamidomethyl)-L-cysteinyl-L-prolinate→Trifluoroacetic acid prop-2-en-1-yl N-(triphenylmethyl)-L-asparaginyl-S-(acetamidomethyl)-L-cysteinyl-L-prolinate→O-Ethyl-N-[3-[(triphenylmethyl)sulfanyl]propanoyl]-D-tyrosyl-L-isoleucyl-L-threonine→Methyl O-ethyl-N-[3-[(triphenylmethyl)sulfanyl]propanoyl]-D-tyrosyl-L-isoleucyl-L-threonyl-N-(triphenylmethyl)-L-asparaginyl-S-(acetamidomethyl)-L-cysteinyl-L-prolinate→Prop-2-en-1-yl O-ethyl-N-[3-[(triphenylmethyl)sulfanyl]propanoyl]-D-tyrosyl-L-isoleucyl-L-threonyl-N-(triphenylmethyl)-L-asparaginyl-S-(acetamidomethyl)-L-cysteinyl-L-prolinate→O-Ethyl-N-[3-[(triphenylmethyl)sulfanyl]propanoyl]-D-tyrosyl-L-isoleucyl-L-threonyl-N-(triphenylmethyl)-L-asparaginyl-S-(acetamidomethyl)-L-cysteinyl-L-proline
S-(Acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteine→N-Boc-L-proline→1-tert-Butyl 2-prop-2-en-1-yl (2S)-pyrrolidine-1,2-dicarboxylate→Prop-2-en-1-yl S-(acetamidomethyl)-N-(tert-butoxycarbonyl)-L-cysteinyl-L-prolinate→Pyrrolidine-2(S)-carboxylic acid
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