Romantic chateaux and castles overlook the river's twisting course.富有浪漫气息的庄园和城堡俯瞰着蜿蜒的河道。The rhododendrons encroached ever more on the twisting drive.越来越多的杜鹃花长到了蜿蜒的车道上。The old peasant is twisting pieces of straw into...
The rhododendrons encroached ever more on the twisting drive...越来越多的杜鹃花长到了蜿蜒的车道上。Soviet bureaucratese, especially the tongue - twisting acronyms and alien - sounding portmanteau words of the state security apparatus ( St...
In particular, the invention is concerned with amido piperazine derivatives.具体地说, 本发明涉及酰氨基哌嗪衍生物.Fmoc, Boc and Pbf were used respectively to protect α - amido, side amido and side guanidine group.对于α-氨基仍采用Fmoc保护策略, 侧链氨基用二...