问：请问谁有各种抗生素的结构式？
答： 青霉素及衍生物:http://www.hbcnc.edu.cn/~hxx/jpkc/yjhx/youji/pxy/JA17.htm文章中段头孢类:http://www.ccph.org/sms/sms2/sms2_1014.htmhttp://www.chinahtp.com/ProductHtml1/2006-07/Product200147831.htm大环内脂类:http://www.sanyao.com/products/sars/氨基糖苷类:http://www.ittc.com.cn/NewsView.asp?id=4036四环素类:http://www.yaoxue.net/search/drug/display.asp?code=aae&name=盐酸四环素&did=51氯霉素类:http://www.yaoxue.net/search/drug/display.asp?code=aaf&name=氯霉素&did=56林可霉素类:http://www.yaoxue.net/search/drug/display.asp?code=aag&name=盐酸林可霉素&did=68