placebo-effect
发表于 2025-3-28 16:13:48
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Pert敏捷
发表于 2025-3-28 22:01:23
The Design of Cone-fixed Calixarene Analogs by Taking ,-Metacyclophanes as a Building Blockrmation. An enlarged calixarene analog was obtained after the cyclobutane ring cleavage of the parent analog by Birch reduction. Several ionophores have been derived from the analogs and been found to select the larger ions during the extraction of alkali metals, transition metals, and lanthanoid