题目

氯吡格雷( Clopidogrel)是一种用于抑制血小板聚集的药物。以A为原料合成氯吡格雷的路线如下：    请回答下列问题：     (1)A中含氧官能团的名称为__________，C-D的反应类型是_______________。     (2)Y的结构简式为______________，在一定条件下Y与BrCl（一氯化溴，与卤素单质性质相似）按物质的量1:1发生加成反应，生成的产物可能有____种。     (3)C分子间可在一定条件下反应生成含有3个六元环的产物，该反应的化学方程式为 _________________________________________18．Some 30，000 years ago，artists who lived in caves in Europe painted pictures of the animals around them：panthers，hyenas，rhinos，cave lions，mammoths and other creatures which have been extinct for a long time．The artwork，more than a thousand drawings，is considered the oldest group of human cave drawings which have ever been discovered．They were preserved because the cave was sealed---closed off--for more or less 23，000 years．Fast forward to December 18，1994，a group of French cave scientists were exploring caves in southern France．Jean Marie Chauvet，who led the group then，describes the process of discovering the cave paintings．"At that time I was in the front，Eliette just walked behind me，Christian behind．Eliette said she saw two marks with red ochre（赭石） and she said，‘They came here．'And at this very moment everything began．The drawings and everything linked to the parietal art（壁画）．That is where it started．"Cave art expert Jean Clotttes reviewed the paintings．"I was amazed at the number of paintings there were and paintings of their quality and particularly in front of the panel of the horses．"Scientific analysis confirmed the prehistoric date of the artwork．Studies showed the drawings were created tens of thousands of years ago，before human history was written．The United Nations'cultural agency UNESCO lists the cave as a World Heritage Site．They say that the drawings form a remarkable expression of early human artistic creation of grand excellence and variety．The Chauvet Cave has been named after the explorer who first entered it．However，its environment and drawings are too fragile to be visited by human beings．So the cave is closed，and only people there for scientific purposes can go inside and see the artwork．However，French authorities asked experts to create an exact copy of the cave，called Pont d'Arc Cavern．The copy，which we also called replica，cost more than 59 million dollars to build．It opened at the end of April in France．Pascal Terrasse is the president of the cavern．He says everyone will be able to experience the thrill of looking at drawings made by the first humans in Europe．He says the place is magic because it is done so well．Authorities say they think as many as 400，000 people will be allowed to visit Pont d'Arc Cavern every year．29．According to Jean Clottes'words in Paragraph 4，the paintings in the cave wereB．A．abstract      B．superior         C．creative     D．inspiring30．Which of the follow statements is TRUE about the Chauvet Cave？CA．It was closed off for more than 30，000 years．B．It is thought to be the origin of modern parietal art．C．The environment and artwork there are very easy to damage．D．The majority of drawings there are about the extinct animals．31．The purpose of creating Pndt d'Arc Cavern is toC．A．show admiration for the earliest artists in EuropeB．arouse visitors'awareness of protecting ancient artC．offer visitors chances to view the wonderful artworkD．collect money for the perseverance of the Chauvet Cave．