The present invention relates to a novel compound represented by the following formula [I] which is useful as a synthetic intermediate of a 2-alkynyladenosine. The present invention also relates to a process for producing the compound and a process for producing a 2-alkynyladenosine [IV] by way of the compound. Further, the present invention relates to a 2-alkynyladenosine derivative represented by the following formula [V] having excellent storage stability and, to a method of storing the 2-alkynyladenosine in the form of that derivative. ##STR1## wherein R.sup.1 through R.sup.4 represent a hydrogen atom or a protective group, and n denotes an integer of 1 to 15, provided that R.sup.1 through R.sup.4 do not represent a hydrogen atom simultaneously.
本发明涉及一种新型化合物,其表示为以下式[I],可用作2-炔基
腺苷的合成中间体。本发明还涉及一种制备该化合物的方法以及通过该化合物制备2-炔基
腺苷[IV]的方法。此外,本发明还涉及一种具有优异存储稳定性的以下式[V]所表示的2-炔基
腺苷衍
生物,以及以该衍
生物形式存储2-炔基
腺苷的方法。其中,R.sup.1至R.sup.4代表氢原子或保护基,n表示1到15的整数,前提是R.sup.1至R.sup.4不能同时表示氢原子。