PROBLEM TO BE SOLVED: To provide a production method of a medicine which is an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor, for treating and preventing excessive non-malignancy hyperplasia, pancreatitis, renal disease, cancer, arterialization or an angiogenesis-related disease of a mammal, or a medicine for germ cell transplantation of a mammal.SOLUTION: There is provided a use of 4-[(3-ethynyl phenyl)amino]-6-7-benzo-12-crown-hydrochloric acid quinazoline, illustrated by following formula, and these novel crystals (I, II, III, IV) for treatment of EGFR kinase-intermediating pathogen, and a use for treatment by joint use with another therapeutic agent.【課題】表皮成長因子受容体(EGFR)チロシンキナーゼ阻害剤である、哺乳動物の過度の非悪性過形成症、膵臓炎、腎臓病、癌、血管新生又は脈管形成関連疾患の治療又は予防のための薬剤、或いは哺乳動物の胚細胞移植のための薬剤の製造法の提供。【解決手段】下記式で示される4-[(3-エチニルフェニル)アミノ]-6-7-ベンゾ-12-クラウン-塩酸キナゾリン及びこの新規な結晶体(I,II,III,IV)の、EGFRキナーゼ仲介病原体の治療のための使用、および他の治療薬と併用での治療上の使用。【選択図】なし