Methyl 6β-phenoxyacetamido-6α-trichloroethoxyformamidopenicillanate has been converted into a 6α-aminopenicillanate; 6α-ethoxyformamido-6β-phenoxyacetamidopenicillanates reacted with phosgene and base to afford unique (1-ethoxycarbonyl-3-phenoxyacetyl-2-oxo-1,3-diazetidine)-4-spiro-6′-penicillanates.
6- β -phenoxyacetamido-6 α -trichloroethoxyformamidopenicillanate已被转换成一个6 α -aminopenicillanate; 6 α -ethoxyformamido-6 β -phenoxyacetamidopenicillanates与
光气和碱反应,得到独特的(1-乙氧羰基-3-苯氧基-2-氧代-1,3-二氮杂
环丁烷)-4-螺-6'- penicillanates。