Pactimibe

Modify Date: 2024-01-10 15:40:20

Pactimibe Structure
Pactimibe structure
Common Name Pactimibe
CAS Number 189198-30-9 Molecular Weight 416.59700
Density 1.071 Boiling Point 604.4ºC at 760 mmHg
Molecular Formula C25H40N2O3 Melting Point N/A
MSDS N/A Flash Point 319.3ºC

 Use of Pactimibe


Pactimibe (CS-505 free base) is a dual ACAT1/2 inhibitor with IC50s of 4.9 μM and 3.0 μM, respectively. Pactimibe (CS-505 free base) inhibits ACAT with IC50s of 2.0 μM, 2.7 μM, 4.7 μM in the liver, macrophages and THP-1 cells, respectively[1]. Pactimibe (CS-505 free base) noncompetitively inhibits oleoyl-CoA with a Ki value of 5.6 μM. Moreover, Pactimibe (CS-505 free base) obviously inhibits cholesteryl ester formation with an IC50 of 6.7 μM. Pactimibe (CS-505 free base) possesses anti-atherosclerotic potential with lowering plasma cholesterol activity[2].

 Names

Name 2-[7-(2,2-dimethylpropanoylamino)-4,6-dimethyl-1-octyl-2,3-dihydroindol-5-yl]acetic acid
Synonym More Synonyms

 Pactimibe Biological Activity

Description Pactimibe (CS-505 free base) is a dual ACAT1/2 inhibitor with IC50s of 4.9 μM and 3.0 μM, respectively. Pactimibe (CS-505 free base) inhibits ACAT with IC50s of 2.0 μM, 2.7 μM, 4.7 μM in the liver, macrophages and THP-1 cells, respectively[1]. Pactimibe (CS-505 free base) noncompetitively inhibits oleoyl-CoA with a Ki value of 5.6 μM. Moreover, Pactimibe (CS-505 free base) obviously inhibits cholesteryl ester formation with an IC50 of 6.7 μM. Pactimibe (CS-505 free base) possesses anti-atherosclerotic potential with lowering plasma cholesterol activity[2].
Related Catalog
Target

ACAT1:4.9 μM (IC50)

ACAT2:3.0 μM (IC50)

ACAT:2 μM (IC50, in the liver)

ACAT:2.7 μM (IC50, in macrophages)

ACAT:4.7 μM (IC50, in THP-1 cells)

oleoyl-CoA:5.6 μM (Ki)

cholesteryl ester formation:6.7 μM (IC50)

In Vitro Pactimibe (CS-505 free base) induces moderate ACAT inhibition in monocyte-derived macrophages, leading to the suppression of foam cell formation[2].
In Vivo Pactimibe (CS-505 free base; 60 and 200 mg/kg/day; oral gavage; twice a day; 12 weeks) induces an inhibition for ACAT-1 and ACAT-2, causing a reduction of plasma cholesterol but no influence on macrophage- or collagen-positive areas[3]. Animal Model: Male C57BL/6J ApoE−/− mice aged 8-week-old[3] Dosage: 60 and 200 mg/kg/day Administration: Oral gavage; twice a day; 12 weeks Result: Decreased plasma cholesterol levels by 39% and 74% at the administration of 60 and 200 mg/kg/day
References

[1]. Naoki Terasaka, et al. ACAT inhibitor pactimibe sulfate (CS-505) reduces and stabilizes atherosclerotic lesions by cholesterol-lowering and direct effects in apolipoprotein E-deficient mice. Atherosclerosis. 2007 Feb;190(2):239-47.

[2]. Ken Kitayama, et al. Importance of acyl-coenzyme A:cholesterol acyltransferase 1/2 dual inhibition for anti-atherosclerotic potency of pactimibe. Eur J Pharmacol. 2006 Jul 1;540(1-3):121-30.

[3]. Yasunobu Yoshinaka, et al. A selective ACAT-1 inhibitor, K-604, stimulates collagen production in cultured smooth muscle cells and alters plaque phenotype in apolipoprotein E-knockout mice. Atherosclerosis. 2010 Nov;213(1):85-91.

 Chemical & Physical Properties

Density 1.071
Boiling Point 604.4ºC at 760 mmHg
Molecular Formula C25H40N2O3
Molecular Weight 416.59700
Flash Point 319.3ºC
Exact Mass 416.30400
PSA 69.64000
LogP 5.77610
Vapour Pressure 1.86E-15mmHg at 25°C
Index of Refraction 1.547

 Synthetic Route

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Pactimibe Structure

Pactimibe

CAS#:189198-30-9

Literature: Kyoto Pharmaceutical Industries, Ltd. Patent: US6063806 A1, 2000 ;

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Pactimibe Structure

Pactimibe

CAS#:189198-30-9

Literature: Sankyo Company, Limited Patent: EP1364942 A1, 2003 ; Location in patent: Page/Page column 25 ;

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Pactimibe Structure

Pactimibe

CAS#:189198-30-9

Literature: Takahashi, Kenji; Kasai, Masayasu; Ohta, Masaru; Shoji, Yoshimichi; Kunishiro, Kazuyoshi; Kanda, Mamoru; Kurahashi, Kazuyoshi; Shirahase, Hiroaki Journal of Medicinal Chemistry, 2008 , vol. 51, # 15 p. 4823 - 4833

 Synonyms

UNII-D874R9PZ9T
Pactimibe
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