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MedKoo CAT#: 563179

CAS#: 1266227-69-3

Description: T-3256336 is an orally available IAP antagonist. It act by selectively binding to and antagoning protein interactions involving cellular IAP-1 (cIAP-1), cIAP-2, and X-linked IAP (XIAP).

Price and Availability

Size Price Shipping out time Quantity
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Pricing updated 2020-07-07. Prices are subject to change without notice.

T-3256336 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 563179
Name: T-3256336
CAS#: 1266227-69-3
Chemical Formula: C31H45F2N5O5
Exact Mass: 605.3389
Molecular Weight: 605.72
Elemental Analysis: C, 61.47; H, 7.49; F, 6.27; N, 11.56; O, 13.21

Synonym: T-3256336; T 3256336; T3256336;

IUPAC/Chemical Name: (3S,7R,8aR)-2-{(2S)-2-(4,4-Difluorocyclohexyl)-2-[(N-methyl-L-alanyl)amino]acetyl}-N-[(4R)-3,4-dihydro-2H-chromen-4-yl]-7-ethoxyoctahydropyrrolo[1,2-a]pyrazine-3-carboxamide


InChi Code: InChI=1S/C31H45F2N5O5/c1-4-42-22-15-21-16-38(30(41)27(36-28(39)19(2)34-3)20-9-12-31(32,33)13-10-20)25(18-37(21)17-22)29(40)35-24-11-14-43-26-8-6-5-7-23(24)26/h5-8,19-22,24-25,27,34H,4,9-18H2,1-3H3,(H,35,40)(H,36,39)/t19-,21+,22+,24+,25-,27-/m0/s1

SMILES Code: O=C([C@H]1N(C([C@H](C2CCC(F)(F)CC2)NC([C@H](C)NC)=O)=O)C[C@](C[C@@H](OCC)C3)([H])N3C1)N[C@@H]4CCOC5=C4C=CC=C5

Technical Data

Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO

Shelf Life:
>3 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:


1: Sumi H, Inazuka M, Morimoto M, Hibino R, Hashimoto K, Ishikawa T, Kuida K, Smith PG, Yoshida S, Yabuki M. An inhibitor of apoptosis protein antagonist T-3256336 potentiates the antitumor efficacy of the Nedd8-activating enzyme inhibitor pevonedistat (TAK-924/MLN4924). Biochem Biophys Res Commun. 2016 Nov 18;480(3):380-386. doi: 10.1016/j.bbrc.2016.10.058. Epub 2016 Oct 19. PubMed PMID: 27771247.

2: Sumi H, Inazuka M, Hashimoto K, Ishikawa T, Yoshida S, Yabuki M. T-3256336, a novel and orally available small molecule IAP antagonist, induced tumor cell death via induction of systemic TNF alpha production. Biochem Biophys Res Commun. 2016 Oct 14;479(2):179-185. doi: 10.1016/j.bbrc.2016.09.019. Epub 2016 Sep 5. PubMed PMID: 27608596.

3: Takeuchi S, Kojima T, Hashimoto K, Saito B, Sumi H, Ishikawa T, Ikeda Y. Screening and Characterization of Hydrate Forms of T-3256336, a Novel Inhibitor of Apoptosis (IAP) Protein Antagonist. Chem Pharm Bull (Tokyo). 2015;63(11):858-65. doi: 10.1248/cpb.c15-00262. PubMed PMID: 26521850.

4: Shiokawa Z, Hashimoto K, Saito B, Oguro Y, Sumi H, Yabuki M, Yoshimatsu M, Kosugi Y, Debori Y, Morishita N, Dougan DR, Snell GP, Yoshida S, Ishikawa T. Design, synthesis, and biological activities of novel hexahydropyrazino[1,2-a]indole derivatives as potent inhibitors of apoptosis (IAP) proteins antagonists with improved membrane permeability across MDR1 expressing cells. Bioorg Med Chem. 2013 Dec 15;21(24):7938-54. doi: 10.1016/j.bmc.2013.09.067. Epub 2013 Oct 12. PubMed PMID: 24169315.

5: Hashimoto K, Saito B, Miyamoto N, Oguro Y, Tomita D, Shiokawa Z, Asano M, Kakei H, Taya N, Kawasaki M, Sumi H, Yabuki M, Iwai K, Yoshida S, Yoshimatsu M, Aoyama K, Kosugi Y, Kojima T, Morishita N, Dougan DR, Snell GP, Imamura S, Ishikawa T. Design and synthesis of potent inhibitor of apoptosis (IAP) proteins antagonists bearing an octahydropyrrolo[1,2-a]pyrazine scaffold as a novel proline mimetic. J Med Chem. 2013 Feb 14;56(3):1228-46. doi: 10.1021/jm301674z. Epub 2013 Jan 29. PubMed PMID: 23298277.

6: Sumi H, Yabuki M, Iwai K, Morimoto M, Hibino R, Inazuka M, Hashimoto K, Kosugi Y, Aoyama K, Yamamoto S, Yoshimatsu M, Yamasaki H, Tozawa R, Ishikawa T, Yoshida S. Antitumor activity and pharmacodynamic biomarkers of a novel and orally available small-molecule antagonist of inhibitor of apoptosis proteins. Mol Cancer Ther. 2013 Feb;12(2):230-40. doi: 10.1158/1535-7163.MCT-12-0699. Epub 2012 Dec 12. PubMed PMID: 23243058.