1. Adityachaudhury, N. and Gupta, P. K. (1973), Phyto chemistry
12, 425.
2. Adityachaudhury, N., Kirtaniya, C. L. and Mukherjee, B. (1971), Tetrahedron
27, 2111.
3. Aft, H. (1965), J. org. Chem.
30, 897.
4. Agarwal, S. K., Grover, S. K. and Seshadri, T. R. (1969), Indian J. Chem.
7, 1059.
5. Agoramurthy, K., Kukla, A. S. and Seshadri, T. R. (1961), Curr. Sci.
30, 218.