CAS 102518-79-6 | (-)-Huperzine A

Molecular Formula: C15H18N2O
Molecular Weight: 242.32
EINECS: 600-320-6
Purity: 97% Min.
Package: 1 g / 5 g / 25 g / 100 g / 1 kg / 25 kg
Worldwide Delivery

Application

Specification of CAS 102518-79-6 | (-)-Huperzine A

ITEMS

SPECIFICATION

Melting point

211-216 C

alpha

D -147° (c = 0.36 in CH3OH) (Ayer); D24.5 -150.4° (c = 0.498 in MeOH) (Liu)

Storage temp.

Keep in dark place,Inert atmosphere,2-8°C

Form

neat

Density

1.20 g/cm3

Boiling point

505.0 °C

pka

12.25

optical activity

[α]/D -153±5°, c = 0.5 in methanol

CAS DataBase Reference

102518-79-6(CAS DataBase Reference)

Synthesis of CAS 102518-79-6 | (-)-Huperzine A

CAS 102518-79-6 | (-)-Huperzine A

Conditions

Stage #1: methyl ((5S,E)-11-ethylidene-2-methoxy-7-methyl-5,6,9,10-tetrahydro-5,9-methanocycloocta[b]pyridin-5-yl)carbamate With trimethylsilyl iodide In chloroform for 6h; Reflux; Inert atmosphere;

Stage #2: With methanol In chloroform for 3h; Reflux; Inert atmosphere;

Reference

Koshiba, Takahiro; Yokoshima, Satoshi; Fukuyama, Tohru

[Organic Letters, 2009, vol. 11, # 22, p. 5354 – 5356]

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