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US4440692A Substituted carbonic acid esters 失效
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Substituted carbonic acid esters
摘要:
Substituted carbonic acid esters and urethanes having the formula ##STR1## wherein Ad is a substituted or unsubstituted 1-adamantyl residue, R.sup.1 and R.sup.2 are saturated alkyl groups and X is chlorine, fluorine, azido or unsubstituted or substituted phenoxy. These compounds can be used in the synthesis of various peptides.
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