论文部分内容阅读
4-甲基甾烷类化合物是一类广泛存在于原油、油页岩中的生物标志化合物。4α-甲基-5α-胆甾烷(4)的合成已有文献报道。我们用与
4-Methylstein compounds are a group of biomarker compounds widely found in crude oil and oil shale. The synthesis of 4α-methyl-5α-cholestane (4) has been reported in the literature. We use with