Journal of natural products

Enantioselective Total Synthesis and X-ray Structures of the Tetrahydroprotoberberine Alkaloids (−)-(S)-Tetrahydropalmatrubine and (−)-(S)-Corytenchine

AL Zein, LN Dawe, PE Georghiou

Index: Patra, Amarendra; Mukhopadhyay, Prabir K.; Mitra, Alok K. Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1980 , vol. 19, # 7 p. 561 - 562

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Citation Number: 10

Abstract

... Journal of Natural Products. ... John's, Newfoundland and Labrador, A1B3X7, Canada. J. Nat. Prod. ... b: 1. (CH 3 ) 2 SO 4 , K 2 CO 3 , acetone, 95%; 2. CBr 4 , PPh 3 , CH 2 Cl 2 , 92%; 3. pyrrolidine, H 2 O, rt, 91%; 4. 1.0 M HCl aq /dioxane; 5. (COCl) 2 , benzene, 96%; 6. CA* = (S)-α ...