Terpenoid constituents from some indigenous plants

Journal of the Indian Chemical Society

Volumn 79, Issue 6, 2002, Pages 550-552

  Krishna, Vivek ^a   Sharma, Sneh ^a   Pareek, R B ^a   Singh, Pahup ^a  

^a UNIVERSITY OF RAJASTHAN   (India)

Author keywords

[No Author keywords available]

Indexed keywords

BETA AMYRIN; BETULIC ACID; BETULIN; FRIEDELIN; LUPEOL ACETATE; OLEANOLIC ACID; SITOSTEROL; STIGMASTEROL; TERPENOID;

ANALYTIC METHOD; ARTICLE; CLUSTER ANALYSIS; DRUG ISOLATION; PLANT; PROTON NUCLEAR MAGNETIC RESONANCE; SPECIES DIFFERENTIATION;

EID: 0041362003     PISSN: 00194522     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (33)

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20. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka, T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
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24. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka, T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
25. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka, T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
26. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka, T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
27. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka. T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
28. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka. T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
29. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka. T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
30. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka, T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
31. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka, T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
32. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka. T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.
33. J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); J. P. Wibaut, H. C. Beyerman and U. Hollsterin, Koninki. Ned. Akad. Wetenschap Proc. B, 1955, 58, 56 (Chem. Abstr., 1955, 10583); H. Neuhoefer, L. Witte, M. Gorunvic and F. C. Czygen, Pharmazie, 1993, 48, 389; R. N. Chopra, I. C. Chopra and B. S. Verma, "Supplement to Glossary of Indian Medicinal Plants", NISCOM, C.S.I.R., New Delhi, Reprinted 1998, p. 84, and references therein; W. Mayer, A. Gorner and C. Andra, Liebigs Ann. Chem., 1977, 1976; T. Okuda, T. Yoshida, K. Mori and T. Holano, Heterocycles, 1981, 15, 123; O. T. Schmidt, J. N. Schmidt and J. Herok, Liebigs Ann. Chem., 1954, 67, 587; T. Okuda, T. Yoshida, N. Asida and K. Youki, J. Chem. Soc., Perkin Trans. 1, 1983, 1765; O. T. Schmidt, W. Ebert and M. Wopp, Liebigs Ann. Chem., 1969, 729, 251; N. Nishizauea, T. Yanuagishi, G. Nonaka and I. Mishioka, J. Chem. Soc., Perkin Trans. 1, 1982, 2963; A. Haddock, R. K. Gupta, S. M. Atshaji and E. Haslam, J. Chem. Soc., Perkin Trans. 1, 1982, 2515; O. T. Schmidt, R. Eckert, E. Gunther and H. Hesser, Liebigs Ann. Chem., 1967, 706, 204; G. Noaka, I. Mishioka. T. Nagasowa and H. Oura, Chem. Pharm. Bull., 1981, 29, 2862; G. Nonaka, R. Sakai and I. Nishioka, Phytochemistry, 1984, 23, 1753; M. A. M. Nawwar and A. M. F. Souleman, Phytochemistry, 1984, 23, 2966; M. A. M. Nawwar, S. A. M. Hussein and I. Meffort, Phytochemistry, 1994, 36, 993.