“…By application of the methods described above ,/3-butenolides substituted in the /3-position by the following groups have been prepared: cyclohexyl (75), 4-hydroxycyclohexyl (28, 29), 3,4-dihydroxycyclohexyl (27), phenyl (75,173), p-hydroxyphenyl (82), -hydroxyphenyl (82), decahydro-/3-naphthyl (68), 6-hydroxy-2-naphthyl (68), 1-hydrindanyl (68), etiocholanyl (76), 3(a)hydroxyetiocholanyl (130), 3(/3)-hydroxyetiocholanyl (76), 3(a), 12(a)-dihydroxyetiocholanyl (142), 3(a),7(a), 12(a)-trihydroxyetiocholanyl (34), etioallocholanyl (106), A2-etioallocholenyl (97), 3(a)-hydroxyetioallocholanyl (106), 3(/3)-hydroxyetioallocholanyl (106,132,137) (137, 143), 2,3-dihydroxyetioallocholanyl (97), 3(/3),5-dihydroxyetioallocholanyl (138), 3(/3)-hydroxy-A5-etiocholenyl (99, 131, 144), 3(/3)-hydroxyetioallocholanylmethyl (98), 3(S)-hydroxy-A5-etioallocholenylmethyl (98), norcholanyl (67), 3(/3)-hydroxv-A5-norcholenyl (99,134), and 3(a),7(a), 12(a)-trihydroxynorcholanyl (67,135). Allouzarigenin has also been prepared (109).…”