References
- Shah , AH , Pandey , VB , Eckhardt , G and Miana , GA . 1988 . Heterocycles , 27 : 2777
- Dwivedi , SPD , Pandey , VB , Shah , AH and Eckhardt , G . 1987 . J. Nat. Prod. , 50 : 235
- Tschesche , R and Kaussmann , EU . 1975 . The Alkaloids , Edited by: Manske , RHF . Vol. 15 , 165 – 205 . New York : Academic Press .
- Tschesche , R , David , ST , Uhlendorf , J and Fehlhaber , H-W . 1972 . Chem. Ber. , 105 : 3106
- Fehlhaber , H-W . 1968 . Zeitsch. Anal. Chem. , 235 ( Band 1 ) : 91
- Pandey , VB , Tripathi , YC , Devi , S , Singh , JP and Shah , AH . 1988 . Phytochemistry , 27 : 1915
- Pandey , VB , Singh , JP , Seth , KK , Shah , AH and Eckhardt , G . 1984 . Phytochemistry , 23 : 2118