Steroids and triterpenes from Alangium lamarckii, Allamanda cathartica, Abrus precatorius and Holoptelea integrifolia☆

C30H500 [m.p., mxd. m.p., (~)D, i.r., oxime and 2:4-dinitrophenylhydrazone]. Wolff-Kishner redn. gave a hydrocarbon C30H52, m.p. 248 -250°, (~)D + 20°- NaBH4 redn. yielded an alcohol C30H50 O, m.p. 278-280 °; (~)o + 20°; acetate C32H540 2, m.p. 288-290°; (~)D+35 °. Reduction with Na and n-amyl alcohol furnished an alcohol, m.p. 300-304 °; (~)o + 20°; acetate C32H5402, m.p. 316-318 °; (~)D -- 10°. M + peak at