【求助】能位兄弟帮忙能提供甾体类的核磁数据，小弟最近解谱棘手

甾体骨架类型有多种,其NMR数据也比较丰富,文献很多很多.请具体点.

多谢楼上热心兄弟的关注，我需要的是C21甾体类的核磁数据，指点指点啊

Assignment of the 1H and 13C NMR spectra of the C21 steroids 12--O-acetyltenacigenin A and tenacigenin A by two-dimensional NMR techniques and computer modeling

Magnetic Resonance in Chemistry
Volume 31, Issue 3 , Pages 215 - 221

Abstract
Stereochemical assignments of the C21 steroids 12--O-acetyltenacigenin A and tenacigenin A were performed by use of two-dimensional phase-sensitive COSY, ROESY, 1H and 13C shift correlation spectroscopy (HETCOR and FLOCK), and ambiguous assignments were resolved through molecular modeling comparisons. This combination of techniques is applicable for the assignment of the highly overlapped 1H signals of these steroids.