5603. Lunacridine

Nomenclature

CAS number: 83-58-9
3-[(2R)-2-Hydroxy-3-methylbutyl]-4,8-dimethoxy-1-methyl-2(1H)-quinolinone.
C17H23NO4; mol wt 305.37.
C 66.86%, H 7.59%, N 4.59%, O 20.96%.

Description and references

From bark of Lunasia costulata Miq., and L. quercifolia K. Schum. et Lauterb., Rutaceae. (+)-Form is naturally occurring. Isoln: Boorsma, Bull. Inst. Bot. Buitenzorg 21, 8 (1904). Structure: Goodwin, Horning, J. Am. Chem. Soc. 81, 1908 (1959). Synthesis: Clarke, Grundon, J. Chem. Soc. 1964, 438. Synthesis and stereochemistry: R. M. Bowman et al., J. Chem. Soc. Perkin Trans. 1 1973, 1051. Short synthesis of racemate: M. Ramesh, P. Shanmugam, Indian J. Chem. 24B, 767 (1985).

Chemical structure

Properties

Crystals from methanol/water, mp 86-87°. [α]25589 +28.1°; [α]25436 +76.5° (c = 0.935 in ethanol). uv spectra: Goodwin, Horning, loc. cit. Very slightly sol in water; freely sol in alcohol, benzene, chloroform, ether, ethyl acetate, carbon disulfide, petr ether.

Derivative

Hydroperchlorate.
C17H24ClNO8; mol wt 405.83.
C 50.31%, H 5.96%, Cl 8.74%, N 3.45%, O 31.54%.

Properties

Shiny flakes from methanol/ether, mp 146-148°; remelts at 193-195°. [α]25589 +22.3°; [α]25436 +60.7° (c = 0.750 in ethanol).

Derivative

(±)-Form.

Nomenclature

CAS number: 52306-35-1

Properties

Prisms from petr ether, mp 72-74°. uv max (methanol): 239, 258, 285, 292, 333 nm (ε 24000, 26300, 8300, 7800, 3100).