6897. Ostruthol

Nomenclature

CAS number: 642-08-0
(2Z)-2-Methyl-2-butenoic acid (1R)-2-hydroxy-2-methyl-1-[[(7-oxo-7H-furo[3,2-g][1]benzopyran-4-yl)oxy]methyl]propyl ester.
C21H22O7; mol wt 386.40.
C 65.28%, H 5.74%, O 28.98%.

Description and references

From rhizome of Peucedanum ostruthium L. Koch (Imperatoria ostruthium L.), Umbelliferae: Herzog, Koch, Arch. Pharm. 247, 553 (1909). Structure: Sp"ath, Christiani, Ber. 66, 1150 (1933). Synthesis: Chatterjee, Dutta, Sci. Cult. 34, 460 (1968).

Chemical structure

Properties

Silky needles from benzene, mp 136-137°. [α]D15 -18.3° (pyridine). Slightly sol in water or in ether; sol in hot alcohol, benzene, toluene, pyridine.