Studies directed toward the synthesis of the guanidine alkaloid, spiroleucettadine: some observations at the level of structure

Studies directed toward the synthesis of the guanidine alkaloid, spiroleucettadine: some observations at the level of structure Total Synthesis of (−)‐Spiroleucettadine Cryptospirolepine, a Unique Spiro-nonacyclic Alkaloid Isolated from Cryptolepis sanguinolenta Synthesis of pterogynine and isolation of its isomer pterogynidine, a new guanidine alkaloid Celacinnine, a novel macrocyclic spermidine alkaloid prototype Synthesis of pyrrolizidine oximes 222 and 236: Novel alkaloids of a dendrobatid poison frog Title page Synthesis of isoindoloisoquinoline alkaloids. A revision of the structure of (±)-nuevamine Synthesis and spectral data of unknown lilolidine spiro derivatives Guettardine, a possible biogenetic intermediate in the formation of corynanthe-cinchona alkaloids