propan-2-yl 2-[2-(naphthalen-2

Two‐Step, One‐Pot Synthesis of Inosine, Guanosine, and 2′‐Deoxyguanosine O6‐Ethers via Intermediate O6‐(Benzotriazol‐1‐yl) Derivatives

for the etherification at the O 6 ?position of silyl?protected inosine, guanosine, and 2??deoxyguanosine is described. Typically, a THF solution of the silylated nucleoside is treated with 1H ?benzotriazol?1?yloxy?tris(dimethylamino)phosphonium hexafluorophosphate (BOP

L-Mimosine (-(3-Hydroxy-4-Pyridone-1-yl)-L-Alanine)

L -mimosine is a nonprotein amino acid. Despite the consideration of Leucaena leucocephala as a promising alternate source of protein for fodder, the presence of mimosine to the extent of 2% to 10% dry matter in the leaf and 2% to 5% dry

吲哚-3-乙酸 indole-3-acetic acid，indol- yl-3-acetic acid

　　吲哚 -3-乙酸 indole-3-acetic acid， indol- yl-3-acetic acid 最初曾称为异植物生长索，亦称吲哚乙酸，缩写 IAA。系天然植物生长素中在植物界分布最广的，作为确定植物生长素类的作用效价的基准物质。此物质在大肠杆菌等多数的细菌或一种根霉（ Rhizopus su-inus）、酵母、玉米黑粉病菌等真菌类中能合成，据称绿色的鞭毛虫类或多数的藻类也能合成。在地衣类以上的植物中相当普遍地存在，生理作用亦显著。虽也含于人尿中，但认为它是肠内