TDN345

Modify Date: 2024-01-09 20:21:16

TDN345 Structure
TDN345 structure
Common Name TDN345
CAS Number 134069-68-4 Molecular Weight 468.57900
Density N/A Boiling Point N/A
Molecular Formula C28H34F2N2O2 Melting Point N/A
MSDS N/A Flash Point N/A

 Use of TDN345


TDN345 is a Ca2+ antagonist, used for the treatment of vascular and senile dementia including Alzheimer's disease.

 Names

Name 8-[4,4-bis(4-fluorophenyl)butyl]-3-tert-butyl-4-methylidene-1-oxa-3,8-diazaspiro[4.5]decan-2-one
Synonym More Synonyms

 TDN345 Biological Activity

Description TDN345 is a Ca2+ antagonist, used for the treatment of vascular and senile dementia including Alzheimer's disease.
Related Catalog
In Vitro TDN-345 (10 μM) significantly increases the intracellular NGF content in the time-course study. TDN-345 induces NGF synthesis/secretion at the concentrations of 0.1 μM; statistically significant at 1 μM. The ED50 is 0.88 μM[1].
In Vivo TDN-345 (0.1-1.0 mg/kg, p.o.) dose-dependently decreases the mortality and ischemic neurological deficit score when administered orally twice, 60 min before ischemia and 90 min after recirculation. Additionally, TDN-345 (0.2 or 1.0 mg/kg, p.o. once daily for 3 weeks after the onset of stroke) decreases the mortality and recurrence of stroke in SHRSP[2].
Animal Admin Male Mongolian gerbils (50-70 g body weight) are anesthetized lightly by ether inhalation. A 1-2 cm midline throat incision provided access to both carotid arteries, which are clamped with microaneurysm clamps immediately after recovery from anesthesia. Sixty minutes before occlusion, TDN-345 (0.3 or 1.0 mg/kg suspended in a 5% gum arabic solution or 0.1 or 0.3 mg/kg with 1% NaHCO3 suspended in a 5% gum arabic solution) or vehicle is administered orally. After 15 min of bilateral carotid artery occlusion, the clamps are removed. Ninety minutes after reperfusion, TDN-345 or vehicle is again administered orally. The body temperature is maintained at 37°C during the experimental period using a heating pad. The experiments are performed in nine to 15 animals in each group. Animal survival is observed 8 h and 7 days after reperfusion, and neurological signs are evaluated according to the scoring system as an ischemic neurological score for 5 h after the ischemic insult from an area under the time-neurological deficit score curve (AUCreperfusion (0-300 min)) (hair roughed up or tremor, obtunded, paucity of move, 1; ptosis, seizure, 2; head cocked, eyes fixed open, splayed out hind limbs, extreme rotation, circling behavior, rolling seizure, 3; coma, 6; death, 34). Nine to 15 animals are used in each experimental group.
References

[1]. Fukumoto H, et al. The novel compound TDN-345 induces synthesis/secretion of nerve growth factor in C6-10A glioma cells. Brain Res. 1997 Nov 7;774(1-2):87-93.

[2]. Nakayama T, et al. Beneficial effects of TDN-345, a novel Ca2+ antagonist, on ischemic brain injury and cerebral glucose metabolism in experimental animal models with cerebrovascular lesions. Brain Res. 1997 Jul 11;762(1-2):203-10.

 Chemical & Physical Properties

Molecular Formula C28H34F2N2O2
Molecular Weight 468.57900
Exact Mass 468.25900
PSA 32.78000
LogP 6.35170
Vapour Pressure 2.08E-12mmHg at 25°C
Storage condition 2-8℃

 Synonyms

1-Oxa-3,8-diazaspiro(4.5)decan-2-one,8-(4,4-bis(4-fluorophenyl)butyl)-3-(1,1-dimethylethyl)-4-methylene
8-[4,4-bis(4-fluorophenyl)butyl]-2-tert-butyl-1-methylidene-4-oxa-2,8-diazaspiro[4.5]decan-3-one
TDN345