4291. Fungisterol

Nomenclature

CAS number: 53260-54-1
(3β,5α,22E)-Ergosta-6,8,22-trien-3-ol.
C28H44O; mol wt 396.65.
C 84.78%, H 11.18%, O 4.03%.

Description and references

Formed from ergosterol by fungi. Isoln from Penicillium chrysogenum: A. Saito, J. Ferment. Technol. 29, 457 (1951), C.A. 47, 12507f (1953). Structure: idem, ibid. 31, 141 (1953), C.A. 48, 5276d (1954); idem, ibid. 32, 138, 140 (1954), C.A. 49, 9009i (1955).

Chemical structure

Properties

Crystals from alcohol + ether + ethyl acetate, mp 147.5°. [α]D15 21.9° (chloroform).

Derivative

Acetate.
C30H46O2; mol wt 438.69.
C 82.14%, H 10.57%, O 7.29%.

Properties

Crystals, mp 158.5°. [α]D15 15.7° (chloroform).