METHODS: The target compound was synthesized from N - benzyl protected aminoacetophenone through hydrogenation, benzoylation and reduction. 方法: 以氮 - 苄基保护胺基酮为原料,经氢化, 苯甲酰化,还原三步合成双苯甲酰沙丁胺醇酯.
The police had been intercepting my mail, ie reading it before it was delivered.警方一直截查我的邮件.Holding the mountain pass , our intercepting platoon blazed away at the enemy.我方狙击排占据山口,不断向敌人射击.The model of MLRS intercepting cr...
The book stands out as one of the notable landmarks in the progress of modern science.这部著作是现代科学发展史上著名的里程碑之一.A region is an area lying between two adjacent landmarks.区是两个邻近界标之间的区域.The teacher outlined landmarks in the his...