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2, 3-dihydrobenzofuran derivatives - ËùÓÐ 7 ¸ö°æ±¾ »
Y Kogami, D Mochizuki - US Patent 5,792,791, 1998 - freepatentsonline.com
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Y Kogami, N Aono, D Mochizuki - US Patent 5,798,382, 1998 - freepatentsonline.com
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