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CAS 103213-32-7
N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-trityl-L-cysteine(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-[(triphenylmethyl)sulfanyl]propanoic acidN-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-S-(triphenylmethyl)-L-cysteineN-(9-Fluorenylmethoxycarbonyl)-S-trityl-L-cysteine<-fgf->N-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-S-(triphenylmethyl)-L-cysteineN-(9-Fluorenylmethoxycarbonyl)-S-trityl-L-cysteine
Codes: BATIF-002, (Ia)443746-1-a,(Ia)443746-1-b, Atosiban-009, EPTI-001
Application context (from source-drug indications)
Acute coronary syndromeBevifibatide CitrateUnstable anginaBevifibatide Citrate非ST段抬高型心肌梗死Bevifibatide CitrateIschaemic heart diseaseBevifibatide CitrateMyocardial infarctionBevifibatide CitrateAngina pectorisBevifibatide Citrate下丘脑肥胖Setmelanotide Acetate巴德特-别德尔综合征Setmelanotide AcetateObesitySetmelanotide AcetatePrader-Willi综合征Setmelanotide Acetate垂体疾病Setmelanotide Acetate联合性垂体激素缺乏症Setmelanotide Acetate产科分娩（早产）Atosiban acetate早产（孕37周前）Atosiban acetateEndometriosisAtosiban acetateUnstable anginaEptifibatideMyocardial infarctionEptifibatideIschaemic strokeEptifibatideAcute coronary syndromeEptifibatideSickle cell diseaseEptifibatideST段抬高型心肌梗死Eptifibatide
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| Bevifibatide Citrate | Tier C — Watch / trade | - |
| Setmelanotide Acetate | Tier C — Watch / trade | - |
| Atosiban acetate | Tier C — Watch / trade | - |
| Eptifibatide | 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.
BATIF-001→N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-trityl-L-cysteine→(9H-fluoren-9-yl)methyl (R)-(1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamate→(((9H-fluoren-9-yl)methoxy)carbonyl)-L-proline→(9H-fluoren-9-yl)methyl (S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidine-1-carboxylate→Na-(((9H-fluoren-9-yl)methoxy)carbonyl)-1-(tert-butoxycarbonyl)-L-tryptophan→tert-butyl 3-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-oxopropyl)-1H-indole-1-carboxylate→(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(tert-butoxy)-4-oxobutanoic acid→tert-butyl 3-((S)-2-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(tert-butoxy)-4-oxobutanamido)-3-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-oxopropyl)-1H-indole-1-carboxylate→(((9H-fluoren-9-yl)methoxy)carbonyl)glycine→tert-butyl 3-((8S,11S)-8-(2-(tert-butoxy)-2-oxoethyl)-1-(9H-fluoren-9-yl)-11-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-3,6,9-trioxo-2-oxa-4,7,10-triazadodecan-12-yl)-1H-indole-1-carboxylate→N2-(((9H-fluoren-9-yl)methoxy)carbonyl)-Nw-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)-L-arginine→tert-butyl 3-((5S,11S,14S)-11-(2-(tert-butoxy)-2-oxoethyl)-1-(9H-fluoren-9-yl)-14-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-3,6,9,12-tetraoxo-5-(3-(3-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran-5-yl)sulfonyl)guanidino)propyl)-2-oxa-4,7,10,13-tetraazapentadecan-15-yl)-1H-indole-1-carboxylate→3-mercaptopropanoic acid→tert-butyl 3-((6S,12S,15S)-12-(2-(tert-butoxy)-2-oxoethyl)-1-imino-6-(3-mercaptopropanamido)-15-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-7,10,13-trioxo-1-((2,2,4,6,7-pentamethyl-2,3-dihydrobenzofuran)-5-sulfonamido)-2,8,11,14-tetraazahexadecan-16-yl)-1H-indole-1-carboxylate→(S)-4-(((S)-1-((S)-2-(((R)-1-amino-3-mercapto-1-oxopropan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-(1H-indol-3-yl)-1-oxopropan-2-yl)amino)-3-(2-((S)-5-guanidino-2-(3-mercaptopropanamido)pentanamido)acetamido)-4-oxobutanoic acid
(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-[(triphenylmethyl)sulfanyl]propanoic acid→(2R)-3-(Acetamidomethylsulfanyl)-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid→Resin bound S-trityl-L-cysteinamide→Resin bound S-(acetamidomethyl)-L-cysteinamide→(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(1-(tert-butoxycarbonyl)-1H-indol-3-yl)propanoic acid→(2S)-2-({([(9H-Fluoren-9-yl)methyl)oxy]carbonyl}amino)-3-(1H-indol-3-yl)propanoic acid→Resin bound 1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→Nalpha-Fmoc-N(im)-trityl-L-histidine→(2S)-2-{[(9H-Fluoren-9-ylmethoxy)carbonyl]amino}-5-[2-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidamido]pentanoic acid→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→(2R)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-phenylpropanoic acid→Resin bound D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→Resin bound 1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound 1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound 1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→Resin bound D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound N2-acetyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide
(2R)-2-({[(9H-Fluoren-9-yl)methoxy]carbonyl}amino)-3-[(triphenylmethyl)sulfanyl]propanoic acid→(2R)-3-(Acetamidomethylsulfanyl)-2-(9H-fluoren-9-ylmethoxycarbonylamino)propanoic acid→Resin bound S-(acetamidomethyl)-L-cysteinamide→(2S)-2-({([(9H-Fluoren-9-yl)methyl)oxy]carbonyl}amino)-3-(1H-indol-3-yl)propanoic acid→Resin bound L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→(2S)-2-{[(9H-Fluoren-9-ylmethoxy)carbonyl]amino}-5-[2-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidamido]pentanoic acid→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound 1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound 1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound 1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→(2R)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)propanoic acid→Resin bound D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→Resin bound S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound S-(acetamidomethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-1-(tert-butoxycarbonyl)-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide→Resin bound N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-S-(acetamidomethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(acetamidomethyl)-L-cysteinamide→Resin bound N2-acetyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-S-(triphenylmethyl)-L-cysteinyl-D-alanyl-1-(triphenylmethyl)-L-histidyl-D-phenylalanyl-N5-[N-(2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-5-sulfonyl)carbamimidoyl]-L-ornithyl-L-tryptophyl-S-(triphenylmethyl)-L-cysteinamide
N-(9H-Fluoren-9-ylmethoxycarbonyl)glycine→Resin bound 9H-fluoren-9-ylmethyl (2-amino-2-oxoethyl)carbamate→Resin bound glycinamide→Fmoc-Orn(Boc)-OH→Resin bound S-trityl-L-cysteinyl-L-prolyl-N5-(tert-butoxycarbonyl)-L-ornithylglycinamide→Resin bound N5-(tert-butoxycarbonyl)-L-ornithylglycinamide→N-(9-Fluorenylmethoxycarbonyl)-L-proline→Resin bound L-prolyl-N5-(tert-butoxycarbonyl)-L-ornithylglycinamide→N-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-S-(triphenylmethyl)-L-cysteine→N2-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-N-(triphenylmethyl)-L-asparagine→Resin bound N-trityl-L-asparaginyl-S-trityl-L-cysteinyl-L-prolyl-N5-(tert-butoxycarbonyl)-L-ornithylglycinamide→O-tert-Butyl-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-threonine→Resin bound O-tert-butyl-L-threonyl-N-trityl-L-asparaginyl-S-trityl-L-cysteinyl-L-prolyl-N5-(tert-butoxycarbonyl)-L-ornithylglycinamide
1-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-L-prolyl-N5-(tert-butoxycarbonyl)-L-ornithine→Glycinamide→Resin bound S-(triphenylmethyl)-L-cysteinyl-L-prolyl-L-ornithylglycinamide→1-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-L-prolyl-N5-(tert-butoxycarbonyl)-L-ornithylglycinamide→1-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-L-prolyl-L-ornithylglycinamide→Resin bound L-prolyl-L-ornithylglycinamide→N2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-asparagine→Resin bound L-asparaginyl-S-(triphenylmethyl)-L-cysteinyl-L-prolyl-L-ornithylglycinamide→N-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-L-threonine→Resin bound L-threonyl-L-asparaginyl-S-(triphenylmethyl)-L-cysteinyl-L-prolyl-L-ornithylglycinamide→N-(9-Fluorenylmethoxycarbonyl)-L-proline<-fgf->1-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-proline→N5-(tert-Butoxycarbonyl)-L-ornithine<-fgf->Nalpha-tert-Butoxycarbonyl-L-ornithine<-fgf->Nalpha-Boc-L-ornithine<-fgf->N2-Boc-L-ornithine<-fgf->(2S)-5-Amino-2-{[(tert-butoxy)carbonyl]amino}pentanoic acid→N-(9-Fluorenylmethoxycarbonyl)-S-trityl-L-cysteine<-fgf->N-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-S-(triphenylmethyl)-L-cysteine
Resin bound 9H-fluoren-9-ylmethyl (2-amino-2-oxoethyl)carbamate→Resin bound Gly-NH→N5-[1-(4,4-Dimethyl-2,6-dioxocyclohexylidene)ethyl]-N2-[[(9H-fluoren-9-yl)methoxy]carbonyl]-L-ornithine→Resin bound S-(triphenylmethyl)-L-cysteinyl-L-prolyl-N5-[1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl]-L-ornithylglycinamide→Resin bound Orn(Dde)-Gly-NH→Resin bound L-prolyl-N5-[1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl]-L-ornithylglycinamide→Resin bound Asn-Cys(Trt)-Pro-Orn(Dde)-Gly-NH→N-alpha-Fmoc-L-threonine<-fgf->N-(9H-Fluoren-9-ylmethoxycarbonyl)-L-threonine→Resin bound Thr-Asn-Cys(Trt)-Pro-Orn(Dde)-Gly→N2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-L-asparagine→N-(9-Fluorenylmethoxycarbonyl)-L-proline→N-(9-Fluorenylmethoxycarbonyl)-S-trityl-L-cysteine→N-(9H-Fluoren-9-ylmethoxycarbonyl)glycine
N-[[(9H-Fluoren-9-yl)methoxy]carbonyl]-S-(triphenylmethyl)-L-cysteinyl-L-proline→Resin bound S-(triphenylmethyl)-L-cysteinyl-L-prolyl-N5-[1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl]-L-ornithylglycinamide→Resin bound Orn(Dde)-Gly-NH→N-(9-Fluorenylmethoxycarbonyl)-S-trityl-L-cysteine→(S)-(-)-Proline
(7S,13S)-tert-butyl 13-(((S)-1-((S)-2-(((R)-1-amino-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-(1H-indol-3-yl)-1-oxopropan-2-yl)carbamoyl)-7-(4-aminobutyl)-5,8,11-trioxo-1,1,1-triphenyl-2-thia-6,9,12-triazapentadecan-15-oate→3,5-dimethyl-1H-pyrazole-1-carboximidamide→N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-trityl-L-cysteine→(9H-fluoren-9-yl)methyl (R)-(1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamate→(((9H-fluoren-9-yl)methoxy)carbonyl)-L-proline→(9H-fluoren-9-yl)methyl (S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidine-1-carboxylate→Na-(((9H-fluoren-9-yl)methoxy)carbonyl)-1-(tert-butoxycarbonyl)-L-tryptophan→(9H-fluoren-9-yl)methyl ((S)-3-(1H-indol-3-yl)-1-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-1-oxopropan-2-yl)carbamate→(S)-tert-butyl 4-(((S)-3-(1H-indol-3-yl)-1-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-1-oxopropan-2-yl)amino)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-oxobutanoate→(((9H-fluoren-9-yl)methoxy)carbonyl)glycine→(S)-tert-butyl 4-(((S)-3-(1H-indol-3-yl)-1-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-1-oxopropan-2-yl)amino)-3-(2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)acetamido)-4-oxobutanoate→(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-6-((tert-butoxycarbonyl)amino)hexanoic acid→(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(tert-butoxy)-4-oxobutanoic acid→(10S,16S)-tert-butyl 16-(((S)-3-(1H-indol-3-yl)-1-((S)-2-(((R)-1-(methylamino)-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-1-oxopropan-2-yl)carbamoyl)-10-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2,2-dimethyl-4,11,14-trioxo-3-oxa-5,12,15-triazaoctadecan-18-oate→3-(tritylthio)propanoic acid
N-(((9H-fluoren-9-yl)methoxy)carbonyl)-S-trityl-L-cysteine→(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(tert-butoxy)-4-oxobutanoic acid→3-(tritylthio)propanoic acid→(S)-pyrrolidine-2-carboxylic acid→(S)-tert-butyl 3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(((S)-1-((S)-2-(((R)-1-amino-1-oxo-3-(tritylthio)propan-2-yl)carbamoyl)pyrrolidin-1-yl)-3-(1H-indol-3-yl)-1-oxopropan-2-yl)amino)-4-oxobutanoate→L-cysteine hydrochloride→(R)-(9H-fluoren-9-yl)methyl (1-amino-1-oxo-3-(tritylthio)propan-2-yl)carbamate→(2R,3R)-2,3-dihydroxysuccinic acid→(R)-2-amino-3-(tritylthio)propanamide (2R,3R)-2,3-dihydroxysuccinate→(R)-1-((S)-2-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(tert-butoxy)-4-oxobutanamido)-3-(1H-indol-3-yl)propanoyl)pyrrolidine-2-carboxylic acid→EPTI-057→EPTI-058→(S)-2-amino-3-(1H-indol-3-yl)propanoic acid→(S)-2-((tert-butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanoic acid→3-bromoprop-1-ene→(R)-2-allyl 1-tert-butyl pyrrolidine-1,2-dicarboxylate→(R)-allyl 1-((S)-2-((tert-butoxycarbonyl)amino)-3-(1H-indol-3-yl)propanoyl)pyrrolidine-2-carboxylate→(R)-allyl 1-((S)-2-((S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(tert-butoxy)-4-oxobutanamido)-3-(1H-indol-3-yl)propanoyl)pyrrolidine-2-carboxylate→EPTI-065→EPTI-066→EPTI-067
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