PAC

• CAT Number: I020255
• CAS Number: 2158322-33-7
• Molecular Formula: C₉₄H₁₀₇N₁₃O₁₆
• Molecular Weight: 1674.93
• Purity: ≥95%
• IUPAC Name: N-[2-[2-[2-[2-[4-[(Z)-1-[4-[[4-[[(2S)-5-(carbamoylamino)-2-[[(2S)-2-[6-(2,5-dioxopyrrol-1-yl)hexanoylamino]-3-methylbutanoyl]amino]pentanoyl]amino]phenyl]methoxy]phenyl]-2-phenylbut-1-enyl]phenoxy]ethyl-methylamino]-2-oxoethoxy]ethoxy]ethyl]-4-[(3S,4S)-7-cyano-1-[(2-methoxynaphthalen-1-yl)methyl]-4-methyl-3-[[(2S)-2-(methylamino)propanoyl]amino]-2-oxo-3,4-dihydro-1,5-benzodiazepine-5-carbonyl]benzamide
• InChI: InChI=1S/C94H107N13O16/c1-9-74(65-19-12-10-13-20-65)85(68-34-41-73(42-35-68)123-58-63-25-37-71(38-26-63)100-90(114)77(23-18-47-99-94(96)118)101-91(115)86(60(2)3)102-81(108)24-14-11-17-49-105-82(109)45-46-83(105)110)67-32-39-72(40-33-67)122-52-50-104(7)84(111)59-121-54-53-120-51-48-98-89(113)69-28-30-70(31-29-69)92(116)107-62(5)87(103-88(112)61(4)97-6)93(117)106(78-43-27-64(56-95)55-79(78)107)57-76-75-22-16-15-21-66(75)36-44-80(76)119-8/h10,12-13,15-16,19-22,25-46,55,60-62,77,86-87,97H,9,11,14,17-18,23-24,47-54,57-59H2,1-8H3,(H,98,113)(H,100,114)(H,101,115)(H,102,108)(H,103,112)(H3,96,99,118)/b85-74+/t61-,62-,77-,86-,87-/m0/s1
• InChIKey: AAGUYPGVVXJDLD-GGHCKNFKSA-N
• SMILES: CCC(=C(C1=CC=C(C=C1)OCCN(C)C(=O)COCCOCCNC(=O)C2=CC=C(C=C2)C(=O)N3C(C(C(=O)N(C4=C3C=C(C=C4)C#N)CC5=C(C=CC6=CC=CC=C65)OC)NC(=O)C(C)NC)C)C7=CC=C(C=C7)OCC8=CC=C(C=C8)NC(=O)C(CCCNC(=O)N)NC(=O)C(C(C)C)NC(=O)CCCCCN9C(=O)C=CC9=O)C1=CC=CC=C1

PAC（Cat No.:I020255）, derived from compound LP2 mentioned in patent WO2017201449A1, is an antibody-drug conjugate (ADC) linker and PROTAC molecule. When conjugated with an antibody, PAC exhibits a more pronounced estrogen receptor-alpha (ERα) degradation effect compared to PROTAC alone (without the antibody). This suggests that the addition of the antibody component enhances the targeted degradation of ERα, potentially leading to improved therapeutic outcomes in conditions involving ERα dysregulation.

Reference

[1]. Thomas Pillow, et al. Protac antibody conjugates and methods of use. WO2017201449A1.