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INDOLINO-SPIRO OXAZINE PHOTOCHROMIC COMPOUNDS INCLUDING FIVE ATOM RINGS, METHOD FOR THEIR PREPARATION, PHOTOCHROMIC COMPOSITIONS AND ARTICLES CONTAINING SUCH COMPOUNDS
INDOLINO-SPIRO OXAZINE PHOTOCHROMIC COMPOUNDS INCLUDING FIVE ATOM RINGS, METHOD FOR THEIR PREPARATION, PHOTOCHROMIC COMPOSITIONS AND ARTICLES CONTAINING SUCH COMPOUNDS
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机译:含五个原子环的吲哚-螺旋恶嗪光致变色化合物,其制备方法,光致变色组合物和包含此类化合物的物品
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摘要
New photochromic compounds corresponding to the formula of an indolinospirooxazine containing an indoline part and an oxazine part, where the oxazine part includes a five-membered unsaturated heterocyclic ring. …??The invention covers especially photochromic compounds where the said oxazine part is of the benzothiazolooxazine or indoleninooxazine type.
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