±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 248  |  »Ø¸´: 2
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
¡¾ÐüÉͽð±Ò¡¿»Ø´ð±¾ÌûÎÊÌ⣬×÷Õßwxd0101½«ÔùËÍÄú 5 ¸ö½ð±Ò

wxd0101

Í­³æ (СÓÐÃûÆø)

[ÇóÖú] ÇóÖú·­Ò룺ÌìÈ»²úÎӢÒ뺺£©

Two new compounds, taraxafolide (1) and (+)-taraxafolin-B (2) together with eighteen known compounds, which include one sesquiterpene, thirteen benzenoids, two indole alkaloids, one pyridine derivative and steroid mixtures were isolated and characterized from the fresh roots of Taraxacum formosanum. Structures of new compounds were determined by spectral analysis. (+)-Taraxafolin-B had the bioactive caffeic acid moiety, but its activity was weaker than ¦Á-tocopherol in DPPH radicals scavenging activity assay.
   ÇëÎÊ(+)-taraxafolin-B (2) ÔõÑù·­Ò룬лл£¡£¡£¡

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

snipher950

ľ³æ (ÕýʽдÊÖ)

´Ǫ́ÍåÆÑ¹«Ó¢ÐÂÏʸù²¿£¬·ÜÁ¦²¢¼ø¶¨³öÁ½ÖÖÐµĻ¯ºÏÎtaraxafolide (1)ºÍ (+)-taraxafolin-B (2)ºÍÁíÍâ18ÖÖÒÑÖª»¯ºÏÎ°üÀ¨Ò»ÖÖ±¶°ëÝÆÏ©£¬13·¼Ï㻯ºÏÎÁ½¸ößÅßáÉúÎï¼î£¬Ò»¸ößÁà¤ÑÜÉúÎïºÍÀà¹Ì´¼»ìºÏÎл¯ºÏÎïµÄ½á¹¹Í¨¹ý¹âÆ×·ÖÎöµÃµ½¡£ £¨Î´Íê´ýÐø£©
2Â¥2008-07-03 17:27:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

liuyan001

ƒÉ‚€Ð»¯ºÏÎ taraxafolide £¨ 1 £©¼°£¨ + £© - taraxafolin -B£¨2£©ßBͬ18¸öÒÑÖª»¯ºÏÎÆäÖаüÀ¨1¸ö±¶°ëÝÆ£¬ 13 ¸ö±½ÏµÎï £¬¶þ¸ößÅßáÉúÎï¼î£¬Ò»¸ö¼×»ùßÁà¤ÑÜÉúÎïºÍÀà¹Ì´¼»ìºÏÎï´ÓÆÑ¹«Ó¢Ïʸù±»·ÖÀëºÍ¶¨ÐÔ ¡£Ð»¯ºÏÎïµÄ½á¹¹Í¨¹ý¹âÆ×·ÖÎöÈ·¶¨¡£ £¨ + £© - taraxafolin - BÊÇÓÐÉúÎï»îÐԵĿ§·ÈËá»ùÔª£¬µ«ÆäÔÚÇå³ýDPPH×ÔÓÉ»ù»îÐÔœy¶¨ÖÐÆä»îÐÔÈõÓÚ¦Á -ÉúÓý·Ó¡£
3Â¥2008-07-03 17:28:25
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ wxd0101 µÄÖ÷Ìâ¸üÐÂ
²»Ó¦Öú È·¶¨»ØÌûÓ¦Öú (×¢Ò⣺ӦÖú²Å¿ÉÄܱ»½±Àø£¬µ«²»ÔÊÐí¹àË®£¬±ØÐëÌîд15¸ö×Ö·ûÒÔÉÏ)
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 0703»¯Ñ§ +18 ÄÝÄÝninicgb 2026-04-04 19/950 2026-04-06 12:51 by zllcz
[¿¼ÑÐ] Ò»Ö¾Ô¸Î人Àí¹¤´óѧ-085601²ÄÁϹ¤³Ì£¨×¨Ë¶£©-×Ü·Ö353Çóµ÷¼Á +3 2626262626li 2026-04-02 3/150 2026-04-06 09:08 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] ¿¼Ñе÷¼Á +5 ÃÀÀöµÄyouth_ 2026-04-04 6/300 2026-04-06 06:57 by houyaoxu
[¿¼ÑÐ] ²ÄÁϵ÷¼Á +13 Ò»ÑùYWY 2026-04-03 14/700 2026-04-05 18:20 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 270·ÖÇóµ÷¼Á +4 maxjxbsk 2026-04-01 4/200 2026-04-05 17:04 by yulian1987
[¿¼ÑÐ] Çóµ÷¼Á +3 µçÆøÐ¡Éñͯ 2026-04-04 3/150 2026-04-05 10:17 by barlinike
[¿¼ÑÐ] µ÷¼ÁÇóÖú +10 Ïë»»ÊÖ»ú²»Ïë½âÊ 2026-04-02 13/650 2026-04-05 09:41 by sam3303
[¿¼ÑÐ] ¿¼Ñе÷¼Á +11 СsunÒªºÃÔË 2026-04-04 11/550 2026-04-05 08:02 by qlm5820
[¿¼ÑÐ] 359Çóµ÷¼Á +7 hhhhaaaa$ 2026-04-04 7/350 2026-04-04 18:49 by imissbao
[¿¼ÑÐ] Ò»Ö¾Ô¸ÎäÀí²ÄÁϹ¤³Ì302µ÷¼Á»·»¯»ò»¯¹¤ +19 Doleres 2026-03-31 20/1000 2026-04-04 16:44 by °¡¿¡£¡
[¿¼ÑÐ] 309Çóµ÷¼Á +6 ÁõÁõÁõ1231 2026-04-02 7/350 2026-04-04 13:41 by liucky
[¿¼ÑÐ] һ־Ը˫·Ç085502£¬267·Ö£¬¹ýËļ¶Çóµ÷¼Á +3 ÔÙæҲҪ³Ô·¹°¡ 2026-04-03 3/150 2026-04-04 05:03 by gswylq
[¿¼ÑÐ] 322Çóµ÷¼Á +6 FZAC123 2026-04-03 6/300 2026-04-03 22:23 by ¿ÆÑÐСר¼Ò
[¿¼ÑÐ] ²ÄÁÏ¿ÆÑ§Ó빤³Ì339Çóµ÷¼Á +12 hyz0119 2026-03-31 13/650 2026-04-03 18:33 by lsÁõ˧
[¿¼ÑÐ] 372·Ö²ÄÁÏÓ뻯¹¤£¨085600£©Ò»Ö¾Ô¸ºþÄÏ´óѧÇóµ÷¼Á +3 À¶¼ãƬ 2026-04-03 4/200 2026-04-03 17:58 by Jimmyandyou
[¿¼ÑÐ] »úеר˶297 +3 Afksy 2026-04-03 3/150 2026-04-03 14:24 by 1753564080
[¿¼ÑÐ] 324Çóµ÷¼Á +5 ÏëÉÏѧÇóµ÷ 2026-04-01 6/300 2026-04-02 10:16 by sanrepian
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©¿Æ¼¼£¬085601×Ü·Ö305Çóµ÷¼Á +9 °ëÉú¹Ï£¡ 2026-04-01 11/550 2026-04-02 08:28 by Wang200018
[¿¼ÑÐ] Ò»Ö¾Ô¸°²»Õ´óѧ¼ÆËã»ú¿ÆÑ§Óë¼¼Êõѧ˶£¬331·ÖÇóµ÷¼Á +5 ½¯²ýÅôqtj 2026-04-01 5/250 2026-04-02 08:10 by fxue1114
[¿¼ÑÐ] һ־ԸʳƷ¿ÆÑ§Ó빤³Ì083200Çóµ÷¼Á +4 XQTJZ 2026-03-30 4/200 2026-03-31 04:10 by fmesaito
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û