天真
发表于 2025-3-23 10:22:48
Shikimic Acid Pathway,l patterns and substitutions. ., an important branching point product in the shikimic acid pathway also serves as an important precursor. Natural products with .... or .... or ........ unit as their complete skeletal carbon content or partial skeletal carbon content like .... of C.–.... system utili
–DOX
发表于 2025-3-23 14:42:48
http://reply.papertrans.cn/23/2249/224869/224869_12.png
FACT
发表于 2025-3-23 18:01:34
Alkaloids. General Introduction,hese compounds to save a few. Pelletier (Appendix A-22) collaborated with Dumas and showed the presence of nitrogen in alkaloids. The basic or alkali like property of alkaloids was first observed by Sertürner while working with opium constituents and he used the term “..” The term alkaloid [(derived
毕业典礼
发表于 2025-3-23 23:50:57
http://reply.papertrans.cn/23/2249/224869/224869_14.png
BIPED
发表于 2025-3-24 05:29:06
Nicotine (,-,, ,,-,,-,),er . species. An interesting story rolls down through centuries: a Spanish man called Rodrigo de Jerez, who learnt about smoking from native Americans, started smoking “cylindrical rolls” of tobacco leaves in Portugal and puffed off smoke through nostrils and mouth. He was identified as a man with e
B-cell
发表于 2025-3-24 08:26:25
,Atropine [(±)-Hyoscyamine] and Cocaine (,-,),active, though it contains a chiral center; hence, it occurs as the racemate. In fact (.)-(–)-hyoscyamine, m.p. 108–111 °C, [α]. –22 (50 % ethanol), present almost exclusively in the optically active form in the fresh leaves of the . and . (.) species (Fam. Solanaceae), partly racemizes to atropine
exacerbate
发表于 2025-3-24 10:58:42
http://reply.papertrans.cn/23/2249/224869/224869_17.png
愚笨
发表于 2025-3-24 16:43:52
http://reply.papertrans.cn/23/2249/224869/224869_18.png
动机
发表于 2025-3-24 19:46:56
http://reply.papertrans.cn/23/2249/224869/224869_19.png
猛击
发表于 2025-3-25 02:51:36
http://image.papertrans.cn/c/image/224869.jpg