정일남 연승호 홍장환 이규환 2024-01-12T18:32:37Z 2024-01-12T18:32:37Z 1994-04-12 https://pubs.kist.re.kr/handle/201004/93734 1,3-디실라사이클로부탄　유도체　및　그제조방법 Patent 1994-04-12 1992-06-11 5,302,734 07/897,470 US 특허 한국과학기술연구원