MedKoo Cat#: 126418 | Name: Semagacestat dihydrate

Description:

WARNING: This product is for research use only, not for human or veterinary use.

Semagacestat, also known as LY450139 or LY4501; was a candidate drug for a causal therapy against Alzheimer's disease. It was originally developed by Eli Lilly and Ãlan, and clinical trials were conducted by Eli Lilly. Phase III trials included over 3000 patients, but in August 2010, a disappointing interim analysis, in which semagacestat performed less well than the placebo, led to investigators being instructed to tell subjects to stop taking the drug.

Chemical Structure

Semagacestat dihydrate
CAS#Semagacestat dihydrate

Theoretical Analysis

MedKoo Cat#: 126418

Name: Semagacestat dihydrate

CAS#: Semagacestat dihydrate

Chemical Formula: C19H31N3O6

Exact Mass: 397.2213

Molecular Weight: 397.47

Elemental Analysis: C, 57.42; H, 7.86; N, 10.57; O, 24.15

Price and Availability

This product is currently not in stock but may be available through custom synthesis. To ensure cost efficiency, the minimum order quantity is 1 gram. The estimated lead time is 2 to 4 months, with pricing dependent on the complexity of the synthesis (typically high for intricate chemistries). Quotes for quantities below 1 gram will not be provided. To request a quote, please click the button below. Note: If this product becomes available in stock in the future, pricing will be listed accordingly.
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Synonym
semagacestat dihydrate; ly450139 dihydrate; LY-450139 DIHYDRATE; butanamide dihydrate
IUPAC/Chemical Name
(S)-2-hydroxy-3-methyl-N-((S)-1-(((S)-3-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[d]azepin-1-yl)amino)-1-oxopropan-2-yl)butanamide dihydrate
InChi Key
MVWVSAKBHYNDEF-ANYPDPQESA-N
InChi Code
InChI=1S/C19H27N3O4.2H2O/c1-11(2)16(23)18(25)20-12(3)17(24)21-15-14-8-6-5-7-13(14)9-10-22(4)19(15)26;;/h5-8,11-12,15-16,23H,9-10H2,1-4H3,(H,20,25)(H,21,24);2*1H2/t12-,15-,16-;;/m0../s1
SMILES Code
O.O.CC(C)[C@H](O)C(=O)N[C@@H](C)C(=O)N[C@H]1C2=C(CCN(C)C1=O)C=CC=C2
Appearance
To be determined
Purity
>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).
Solubility
To be determined
Shelf Life
>2 years if stored properly
Drug Formulation
To be determined
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info

Preparing Stock Solutions

The following data is based on the product molecular weight 397.47 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
1: Ross JS, Imbimbo BP. Are γ-secretase inhibitors detrimental for Alzheimer's disease patients? J Alzheimers Dis. 2010 Jan 1;22(2):401-4. PubMed PMID: 21149978. 2: Kelleher RJ 3rd, Shen J. Genetics. Gamma-secretase and human disease. Science. 2010 Nov 19;330(6007):1055-6. PubMed PMID: 21097925. 3: Cummings J. What can be inferred from the interruption of the semagacestat trial for treatment of Alzheimer's disease? Biol Psychiatry. 2010 Nov 15;68(10):876-8. PubMed PMID: 21035622. 4: Samson K. NerveCenter: Phase III Alzheimer trial halted: Search for therapeutic biomarkers continues. Ann Neurol. 2010 Oct;68(4):A9-A12. PubMed PMID: 20976761. 5: Extance A. Alzheimer's failure raises questions about disease-modifying strategies. Nat Rev Drug Discov. 2010 Oct;9(10):749-51. PubMed PMID: 20885394. 6: Portelius E, Van Broeck B, Andreasson U, Gustavsson MK, Mercken M, Zetterberg H, Borghys H, Blennow K. Acute effect on the Aβ isoform pattern in CSF in response to γ-secretase modulator and inhibitor treatment in dogs. J Alzheimers Dis. 2010;21(3):1005-12. PubMed PMID: 20634579. 7: Shitaka Y, Mitani Y, Nagakura A, Miyake A, Matsuoka N. [Progress in the development of anti-amyloid drugs for treatment of Alzheimer's disease.]. Nippon Yakurigaku Zasshi. 2010 Jul;136(1):15-20. Review. Japanese. PubMed PMID: 20628208. 8: Panza F, Frisardi V, Imbimbo BP, Capurso C, Logroscino G, Sancarlo D, Seripa D, Vendemiale G, Pilotto A, Solfrizzi V. REVIEW: γ-Secretase inhibitors for the treatment of Alzheimer's disease: The current state. CNS Neurosci Ther. 2010 Oct;16(5):272-84. doi: 10.1111/j.1755-5949.2010.00164.x. Epub 2010 Jun 16. PubMed PMID: 20560993. 9: Portelius E, Dean RA, Gustavsson MK, Andreasson U, Zetterberg H, Siemers E, Blennow K. A novel Abeta isoform pattern in CSF reflects gamma-secretase inhibition in Alzheimer disease. Alzheimers Res Ther. 2010 Mar 29;2(2):7. PubMed PMID: 20350302; PubMed Central PMCID: PMC2876785. 10: Raybon JJ, Albright CF. In response to "a gamma-secretase inhibitor decreases amyloid-beta production in the central nervous system". Ann Neurol. 2010 Jan;67(1):143-4; author reply 144-5. PubMed PMID: 20186950.