
Helvetica Chimica Acta p. 654 - 661 (1991)
Update date:2022-09-26
Veznik, Frantisek
Guggisberg, Armin
Hesse, Manfred
Coupling of two differently substituted 1,3-diaminopropane units 5 and 6 (Schemes 1 and 2) lead to the key intermediate 8, a tetra-N-protected spermine derivative. By selective deprotection and alkylation with (E)-4-(mesy1oxy) cinnamoyl chloride, followed
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