Chondrillasterol

Title: Chondrillasterol
CAS Registry Number: 481-17-4
CAS Name: (3b,5a,22E,24R)-Stigmasta-7,22-dien-3-ol
Molecular Formula: C29H48O
Molecular Weight: 412.69
Percent Composition: C 84.40%, H 11.72%, O 3.88%
Literature References: Stereoisomeric with a-spinasterol, q.v. Isolated from the green alga Scenedesmus obliquus (Turpin) Kuetz., Scenedesmaceae: Bergmann, Feeney, J. Org. Chem. 15, 812 (1950). Synthesis: W. Sucrow et al., Phytochemistry 15, 1533 (1976); M. Anastasia et al., J. Chem. Soc. Perkin Trans. 1 1981, 2561.
Properties: Crystals from chloroform-methanol, mp 168-169°. [a]D24 -2° (chloroform).
Melting point: mp 168-169°
Optical Rotation: [a]D24 -2° (chloroform)
Derivative Type: Acetate
Molecular Formula: C31H50O2
Molecular Weight: 454.73
Percent Composition: C 81.88%, H 11.08%, O 7.04%
Properties: Crystals from chloroform-methanol, mp 174.5-175.5°. [a]D24 -0.7° (chloroform).
Melting point: mp 174.5-175.5°
Optical Rotation: [a]D24 -0.7° (chloroform)
Derivative Type: Benzoate
Molecular Formula: C36H52O2
Molecular Weight: 516.80
Percent Composition: C 83.67%, H 10.14%, O 6.19%
Properties: Crystals from dioxane, mp 194-195°. [a]D24 +3.9° (chloroform).
Melting point: mp 194-195°
Optical Rotation: [a]D24 +3.9° (chloroform)
Chondrocurine Chondrofoline Chondroitin Sulfate Chondrosine Chonemorphine