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CAS 180839-17-2

Di-tert-butyl 2(S)-isocyanatopentanedioate

Codes: Lutetium (177Lu) vipivotide tetraxetan-003

Application context (from source-drug indications)

Hormone-sensitive prostate cancerLutetium (177Lu) vipivotide tetraxetanCastration-resistant prostate cancerLutetium (177Lu) vipivotide tetraxetanProstate cancerLutetium (177Lu) vipivotide tetraxetanLiver cancerLutetium (177Lu) vipivotide tetraxetanHepatocellular carcinomaLutetium (177Lu) vipivotide tetraxetanRenal cell carcinomaLutetium (177Lu) vipivotide tetraxetan

Source drugs (routes using this intermediate)

DrugTierExpiry
Lutetium (177Lu) vipivotide tetraxetanTier B — Position early-

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.

Lutetium (177Lu) vipivotide tetraxetanOptimised routesteps: 8total yield: /
L-Glutamic acid di-tert-butyl ester hydrochloride→L-Glutamic acid di(tert-butyl) ester→Di-tert-butyl 2(S)-isocyanatopentanedioate→Di-tert-butyl N-[(trichloromethoxy)carbonyl]-L-glutamate→Resin bound H-Lys(Alloc)-OH→Resin bound (2S)-2-([[(2S)-1,5-di-tert-butoxy-1,5-dioxopentan-2-yl]carbamoyl]amino)-6-([[(prop-2-en-1-yl)oxy]carbonyl]amino)hexanoic acid→Resin bound (2S)-6-amino-2-([[(2S)-1,5-di-tert-butoxy-1,5-dioxopentan-2-yl]carbamoyl]amino)hexanoic acid→Fmoc-2-Nal-OH→Resin bound 6-[[(2S)-2-amino-3-(naphthalen-2-yl)propanoyl]amino]-2-([[(2S)-1,5-di-tert-butoxy-1,5-dioxopentan-2-yl]carbamoyl]amino)hexanoic acid→Fmoc-tranexamic acid→Resin bound (2S)-6-[[(2S)-2-[[(1r,4S)-4-(aminomethyl)cyclohexane-1-carbonyl]amino]-3-(naphthalen-2-yl)propanoyl]amino]-2-([[(2S)-1,5-di-tert-butoxy-1,5-dioxopentan-2-yl]carbamoyl]amino)hexanoic acid→DOTA-Tris(t-Bu)ester→(3S,10S,14S)-3-[(Naphthalen-2-yl)methyl]-1,4,12-trioxo-1-[(1r,4S)-4-([2-[4,7,10-tris(carboxymethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetamido]methyl)cyclohexyl]-2,5,11,13-tetraazahexadecane-10,14,16-tricarboxylic acid→N6-[(Allyloxy)carbonyl]-N2-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-lysine→Resin bound N2-[[(9H-fluoren-9-yl)methoxy]carbonyl]-N6-[[(prop-2-en-1-yl)oxy]carbonyl]-L-lysine

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