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Home/Compounds/Pharmaceutical Intermediate/Fmoc-L-Lys[C20-OtBu-L-Glu(OtBu)-AA-AA]-OH
C66H105N5O16
1224.6 g/mol
Pharmaceutical Intermediate

Fmoc-L-Lys[C20-OtBu-L-Glu(OtBu)-AA-AA]-OH

CAS2915356-76-0
Category
Pharmaceutical Intermediate
Compound Class
Peptide
Primary Use
Pharmaceutical Intermediate

This compound is a multifunctional, protected building block for peptide synthesis. It features a fluorenylmethoxycarbonyl (Fmoc) protecting group, a long-chain fatty acid moiety, and multiple polyethylene glycol (PEG) linkers, making it suitable for the construction of complex peptide constructs.

pharmaceutical intermediate for peptide synthesis

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

StrongStructure SimilarSimilarity 1.00

(23S,50S)-50-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-23-(tert-butoxycarbonyl)-2,2-dimethyl-4,21,26,35,44-pentaoxo-3,30,33,39,42-pentaoxa-22,27,36,45-tetraazahenpentacontan-51-oic acid

CAS1662688-20-1

pharmaceutical intermediate

StrongStructure SimilarSimilarity 1.00

(25S,43S)-43-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-25-(tert-butoxycarbonyl)-2,2-dimethyl-4,23,28,37-tetraoxo-3,32,35-trioxa-24,29,38-triazatetratetracontan-44-oic acid

CAS2612237-97-3

research compound

SimilarStructure SimilarSimilarity 0.78

Fmoc-Lys(Pal-Glu-OtBu)-OH

CAS1491158-62-3

pharmaceutical intermediate

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(Z)-2-chloro-1,3-bis(dimethylamino)trimethinium hexafluorophosphate

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pharmaceutical intermediate

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(1R,3S,4S)-N-Boc-2-azabicyclo[2.2.1]heptane-3-carboxylic acid

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pharmaceutical intermediate

ReferenceSame Category

N-(2-((2-(Dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((4-(1-methyl-1H-indol-3-yl)pyrimidin-2-yl)amino)phenyl)-N-(3-((2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((4-(1-methyl-1H-indol-3-yl)pyrimidin-2-yl)amino)phenyl)amino)-3-oxopropyl)acrylamide

CAS2919324-18-6

pharmaceutical intermediate

Referencestereoisomer of

FMOC-L-LYS[C20-OTBU-GLU(OTBU)-AEEA-AEEA]-OH

CAS2460751-66-8

research compound

Related Reading

Therapeutic Peptides in 2026: This Year's Breakthroughs

2026 has been a concentrated year for peptide therapeutics. Efficacy reached a new high in late-stage trials, the obesity field moved beyond the incretins to amylin, the oral route reached weight management, and peptide-guided radioligand therapy kept advancing — each point tied to a specific 2025–2026 result.

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Identifiers
IUPAC Name

(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-6-[[2-[2-[2-[[2-[2-[2-[[(4S)-5-[(2-methylpropan-2-yl)oxy]-4-[[20-[(2-methylpropan-2-yl)oxy]-20-oxoicosanoyl]amino]-5-oxopentanoyl]amino]ethoxy]ethoxy]acetyl]amino]ethoxy]ethoxy]acetyl]amino]hexanoic acid

InChIKey

YWLOWAZATOAHDO-ATMVKLMESA-N

SMILES

CC(C)(C)OC(=O)CCCCCCCCCCCCCCCCCCC(=O)N[C@@H](CCC(=O)NCCOCCOCC(=O)NCCOCCOCC(=O)NCCCC[C@@H](C(=O)O)NC(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13)C(=O)OC(C)(C)C

Synonyms (7)
  • Tirzepatide sidechain

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