摘要:
The present invention provides two kinds of solid 2-octynyl adenosine products with novel properties which are stabilized with respect to temperature or temperature and humidity, one being solid 2-octynyl adenosine having a moisture content of not more than 3%, and the other being solid 2-octynyl adenosine deposited from an anhydrous alcoholic solution or hydrous alcoholic solution of 2-octynyl adenosine, said hydrous alcoholic solution having a water content of less than 1%.
摘要:
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## [I] A=a leaving group, [II] A=NH.sub.2,[V] A=NHR.sup.4,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.
摘要翻译:本发明涉及可用作2-炔基腺苷合成中间体的下式[I]表示的新型化合物。 本发明还涉及该化合物的制备方法和通过该化合物制备2-炔基腺苷[Ⅳ]的方法。 此外,本发明涉及具有优异的储存稳定性的由下式[V]表示的2-炔基腺苷衍生物,以及以该衍生物的形式存储2-炔基腺苷的方法。 [I] A =离去基团,[II] A = NH 2,[V] A = NHR 4,其中R 1至R 4表示氢原子或保护基,n表示1至15的整数, R1至R4同时不表示氢原子。
摘要:
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.
摘要:
The present invention concerns a therapeutic-prophylactic agent for ischemic diseases of the heart or brain, comprising as an active ingredient a 2-alkynyladenosine represented by the following formula: ##STR1## wherein n represents an integer of from 2 to 15.
摘要:
Disclosed herein are a novel 2-substituted adenosine derivative having the following formula [I] ##STR1## wherein R represents a hydrogen atom or a hydroxyl group, m is an integer of 2 to 7, n is 0 or an integer of 1 to 3, and R.sup.1, R.sup.2 and R.sup.3, which may be the same or different, each independently represent a hydrogen atom, a hydroxy protective group or a phosphoric acid residue, and salts thereof.The above compounds are excellent in a circulation ameliorating effect such as a vasodepressor activity, and have high selectivity for A.sub.2 receptors, but cause less undesirable side effects such as a suppresssive effect on the heart. They are therefore effective when used in pharmaceutical compositions for circulatory diseases.