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1-benzyl-7-formylwye | 96881-37-7

中文名称
——
中文别名
——
英文名称
1-benzyl-7-formylwye
英文别名
1-Benzyl-4,6-dimethyl-9-oxoimidazo[1,2-a]purine-7-carbaldehyde
1-benzyl-7-formylwye化学式
CAS
96881-37-7
化学式
C17H15N5O2
mdl
——
分子量
321.338
InChiKey
NTAKMCHKCWXLIG-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    221-225 °C
  • 沸点:
    676.8±65.0 °C(Predicted)
  • 密度:
    1.41±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    2.2
  • 重原子数:
    24
  • 可旋转键数:
    3
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.18
  • 拓扑面积:
    73
  • 氢给体数:
    0
  • 氢受体数:
    5

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    1-benzyl-7-formylwye吡啶 、 sodium tetrahydroborate 、 四氧化锇正丁基锂 、 phosphate buffer 、 溶剂黄146N-甲基吗啉氧化物 作用下, 以 甲醇二氯甲烷丙酮甲苯叔丁醇 为溶剂, 反应 3.95h, 生成 (R*,R*)-1-benzyl-β-hydroxy-α-<(methoxycarbonyl)amino>-4,6-dimethyl-9-oxo-4,9-dihydro-1H-imidazo<1,2-a>purine-7-butanoic acid methyl ester
    参考文献:
    名称:
    对大鼠肝脏苯丙氨酸转移核糖核酸的高修饰核苷合成的研究:改进的基础β-羟基维丁碱的合成。
    摘要:
    改进的关键中间体(3和8)的合成方法,用于合成最大的β-羟基酪丁胺[[R-(R *,S *)]-和[S-(R *,R *)]-4]。 1-苄基-7-甲酰基wye(1)和衍生自(R)-2-[((甲氧羰基)氨基]-的磷烷之间的Wittig反应已实现了大鼠肝脏tRNA(Phe)中次要碱基的可能结构3-(三苯基膦酰基)丙酸酯(10),然后进行甲基化,OsO4氧化,并在吡啶存在下用COCl2进行环缩合。确定[R-(R *,S *)]的光学纯度所需要的外消旋体形式的β-羟基丁酸[[R *,S *)-和(R *,R *)-4]。 -和[S-(R *,R *)]-4通过手性HPLC,通过环碳酸酯3的热解,然后NaBH4还原和催化氢解,方便地制备。[R-(R *,S *)]-和[S-(R *,
    DOI:
    10.1248/cpb.46.1220
  • 作为产物:
    描述:
    7-苄基-3-甲基鸟嘌呤potassium carbonate三氯氧磷 作用下, 以 N,N-二甲基甲酰胺 为溶剂, 反应 5.0h, 生成 1-benzyl-7-formylwye
    参考文献:
    名称:
    苯丙氨酸转移核糖核酸荧光碱基合成的研究:从极嗜热古细菌分离的7-甲基wye的合成。
    摘要:
    1-苄基酸(7)的酸或碱催化酰化作用以低产率提供了7-取代衍生物9、10和11。尽管锂化7与亲电试剂的反应产生了2-取代的衍生物14、15、17、20、21和22,但将1-苄基7-溴-2-氯代锂(23)锂化,然后用Me2CHCH2CHO(13)处理)成功地在7位引入侧链,得到1-苄基-2-氯-7-(1-羟基-3-甲基丁基)(24)。用3-溴-2-丁酮将1-苄基-3-甲基鸟嘌呤(5)环化,然后进行催化氢解,得到7-甲基wye(2b),这是从古细菌转移核糖核酸分离出的高修饰碱基。通过一系列反应,开发了一种更有效的2b合成途径:7的Vilsmeier-Haack反应,用NaBH4还原以及在Pd-C上进行催化氢解。
    DOI:
    10.1248/cpb.37.284
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文献信息

  • Synthesis and Absolute Configuration of Wybutine, the Fluorescent Minor Base from Phenylalanine Transfer Ribonucleic Acids.
    作者:Taisuke ITAYA、Akemi MIZUTANI、Takehiko IIDA
    DOI:10.1248/cpb.39.1407
    日期:——
    The phosphonium chloride 6 having an optically active amino acid moiety was synthesized from (S)-serine benzylester tosylate (2b) through a six-step route. The utility of 6 as a reagent for the Witting reaction was exemplified in the olefination with benzaldehyde, affording the (E)-β, γ-unsaturated amino acid derivative 11 as a sole geometrical ispmer. This new method of amino acid homologation was successuflly employed for the first chiral synthesis of wybutine (1c), the minor base isolated from yeast phenylalanine transfer ribonucleic acids : the Wittig reaction between 6 and the tricyclic aldehyde 16 followed successively by methylation and catalytic reduction afforded 1c. Comparison of wybutine with synthetic 1c has unequivocally established that wybutine has an S configuration.
    含有光学活性氨基酸部分的化膦 6 是通过一条六步合成路线从 (S)-丝氨酸苄酯对甲苯磺酸酯 (2b) 合成的。6 作为 Witting反应试剂的实用性在苯甲醛的烯化反应中得到了体现, 得到了唯一的 (E)-β, γ-不饱和氨基酸生物 11。这种新的氨基酸同系化方法成功地应用于黄曲霉素 (1c)的首次手性合成, 黄曲霉素是从酵母苯丙酸转移核糖核酸中分离得到的次要碱基。6 与三环醛 16 的 Wittig 反应之后接着进行甲基化和催化还原,从而得到了 1c。黄曲霉素与合成物 1c 的比较明确地证明了黄曲霉素具有 S 构型。
  • Isomerization through Cleavage and Recombination of Imidazolide Linkage in the Condensed Tricyclic System Related to Hypermodified Bases of Phenylalanine Transfer Ribonucleic Acids.
    作者:Taisuke ITAYA、Tae KANAI、Shin-ichi OHYAMA、Yoshihisa SHIRASAKI、Nobuhiro MURAMOTO、Yukiko ONO
    DOI:10.1248/cpb.47.1464
    日期:——
    1-Benzyl-4, 6-dimethyl-4, 9-dihydro-1H-imidazo[1, 2-α]purin-9-one bearing an alkyl, a 1-alkenyl, a hydroxymethyl, a methoxymethyl, or a formyl group at the 7-position (3a-e) underwent rearrangement through fission and recyclization of the pyrimidine ring, attaining equilibrium with the corresponding positional isomer 4a-e in MeONa-MeOH at 25°C, whereas 7-methoxycarbonyl and 7-halogeno compounds 3f-i were irreversibly converted into the rearranged products 4f-i under identical conditions. The position of equilibrium appears to be affected by the electronic factor of the substitutent rather than the steric one. The pseudo-first-order rate constants measured for the reactions of 3a, b, d, f-i suggest that the reaction is accelerated by the electron-withdrawing substituent. However, the reactions of this series of compounds do not always obey the Hammett equation.On the other hand, a linear free energy relationship (ρ=+3.2) was observed for the rates of rearrangement of a 6-demethyl series of compounds 9a, b, d, f, g, when σ0P values were employed. The deviations from this relationship for the reactions with the 7-hydroxymethyl compound 9c and the 7-carbamoyl compound 9e are explicable in terms of the accelerative effect through intramolecular hydrogen bonding with the carbonyl oxygen at the 9-position.
    1-苄基-4, 6-二甲基-4, 9-脱氢-1H-咪唑[1, 2-α]嘌呤-9-酮在7位具有烷基、1-烯基、羟甲基、甲氧基甲基或甲酰基的化合物(3a-e)通过嘧啶环的裂解和重环化发生重排,在25°C下在MeONa-MeOH中达到与相应位置异构体4a-e的平衡,而7-甲氧基羧基和7-卤代化合物3f-i在相同条件下被不可逆地转化为重排产物4f-i。平衡位置似乎受到取代基电子因素的影响,而非空间因素。对化合物3a、b、d、f-i反应测得的伪一级速率常数表明,该反应因电子吸引取代基而加速。然而,这一系列化合物的反应并不总是遵循Hammett方程。另一方面,对于6-去甲基类化合物9a、b、d、f、g的重排速率,采用σ0P值时观察到线性自由能关系(ρ=+3.2)。对于与7-羟甲基化合物9c和7-基甲酰化合物9e的反应,这一关系的偏离可以通过与9位羰基氧的分子内氢键相互作用的加速效应来解释。
  • Studies towards the synthesis of the fluorescent bases of phenylalanine transfer ribonucleic acids: Synthesis of 7-(2-Hydroxy-3-methylbutyl)wye, a model for the minor base isolated from rat liver.
    作者:Taisuke ITAYA、Akemi MIZUTANI、Nobuhide WATANABE
    DOI:10.1248/cpb.37.1221
    日期:——
    Treatment of 1-benzyl-7-(hydroxymethyl)wye (8) with PBr3 in the presence of Ph3P gave the phosphonium bromide 9 in good yield, Heating 9 and Me2 CHCHO (7) in MeOH in the presence of K2CO3 provided 1-benzyl-1, 4-dihydro-4, 7-dimethyl-6-(3-methyl-1-butenyl)-9H-imidazo[1, 2-a]purin-9-one (11), a positional isomer of the objective 1-benzyl-7-(3-methyl-1-butenyl)wye (5), as a major product. When the reaction was conducted in Me2NCHO at -65°C using n-BuLi as base, a 7 : 2 mixture of (E)-and (Z)-5 was obtained in good yield. Nevertheless, neither the protected amino aldehyde 18 nor 21 gave the desired olefin under similar conditions, implying poor applicability of this method to the synthesis of the fluorescent bases of phenylalanine transfer ribonucleic acids (tRNAsPhe).Compound 5 was alternatively synthesized by the Wittig reaction between 1-benzyl-7-formylwye (3) and Ph3P+CH2CHMe2 I- (4) in tetrahydrofuran as an equimolar mixture of the geometrical isomers in 50% yield. When the reaction was carried out in Me2SO at room temperature using two equivalents each of NaCH2SOMe and 4, the product, obtained in high yield, was (E)-11. The use of an equimolar amount of the base afforded (E)-5 in 26% yield. Oxidation of (E)-5 with OsO4 followed by hydrogenolysis over Pd-C gave 7-(2-hydroxy-3-methylbutyl)wye (2), a model for the minor base from rat liver tRNA.Phe.
    在 Ph3P 存在下,用 PBr3 处理 1-苄基-7-(羟甲基)碱 (8),得到 9,收率很高;在 K2CO3 存在下,在 MeOH 中加热 9 和 Me2 CHCHO (7),得到 1-苄基-1、4-二氢-4, 7-二甲基-6-(3-甲基-1-丁烯基)-9H-咪唑并[1, 2-a]嘌呤-9-酮 (11)的主要产物,它是客观存在的 1-苄基-7-(3-甲基-1-丁烯基)wye (5)的位置异构体。当以 n-BuLi 为碱在 Me2NCHO 中于 -65°C 进行反应时,可获得 7 : 2 的 (E)-5 和 (Z)-5 混合物,收率很高。在类似条件下,受保护的基醛 18 和 21 都没有得到所需的烯烃,这表明该方法在合成苯丙酸转移核糖核酸(tRNAsPhe)的荧光碱基方面的适用性较差。化合物 5 是通过 1-苄基-7-甲酰基黑麦草(3)和 Ph3P+CH2CHMe2 I- (4)在四氢呋喃中的 Wittig 反应合成的,为几何异构体的等摩尔混合物,收率为 50%。在室温下于 Me2SO 中使用 NaCH2SOMe 和 4 各两当量进行反应时,得到的高产率产物为 (E)-11。使用等摩尔量的碱得到(E)-5,收率为 26%。用 OsO4 氧化 (E)-5,然后在 Pd-C 上进行氢解,得到了 7-(2-羟基-3-甲基丁基)wye (2),这是大鼠肝脏 tRNA.Phe 小碱基的模型。
  • Synthesis of (S-(−)-wybutine, the fluorescent minor base from yeast phenylalanine transfer ribonucleic acids
    作者:Taisuke Itaya、Akemi Mizutani
    DOI:10.1016/s0040-4039(01)80814-5
    日期:——
    The Wittig reaction of 1-benzyl-7-formylwye (12) with (R)-[2-carboxy-2-[(methoxycarbonyl)amino]ethyl]triphenylphosphonium chloride (8) followed by successive methylation and reduction gave (-)-wybutine [(S)-1a].
    1-苄基-7-甲酰基wye(12)与(R)-[2-羧基-2-[(甲氧羰基基)乙基]三苯基phosph化物(8)的Wittig反应,接着连续甲基化和还原得到(-)- wybutine [(小号) - 1A ]。
  • Synthesis of 7-methyl-3-.BETA.-D-ribofuranosylwye, the putative structure for the hypermodified nucleoside isolated from archaebacterial transfar ribonucleic acids.
    作者:Taisuke ITAYA、Masatoshi MORISUE、Motoko TAKEDA、Yukinari KUMAZAWA
    DOI:10.1248/cpb.38.2656
    日期:——
    The Vilsmeier-Haack reaction of 3-(2, 3, 5-tri-O-acetyl-β-D-ribofuranosyl)wye (7c) followed successively by reduction with sodium borohydride and catalytic hydrogenolysis afforded the 7-methyl derivative 12c, which provided the title compound 12a on deprotection. Compound 12c was more effectively produced by direct hydrogenolysis of the 7-formyl derivative 8c, especially by use of Pearlman's catalyst. Similar treatment of 1-benzyl-7-formylwye (14) led to a better synthesis of 7-methylwye (1b), the fluorescent base isolated from Archabacterial transfer ribonucleic acids. Although hydrogenolysis of the 6-formyl compound 11 took place smoothly even over ordinary palladium on charcoal to afford 12c, this route had a bottleneck in the step of transformation of 8c into 11.Compound 12a proved to be highly sensitive to acidic hydrolysis at the glycosyl bond and the rate determined in 0.1N hydrochloric acid at 25°Cwas virtually the same as that of 3-β-D-ribofuranosylwye (7a).
    通过 3-(2,3,5-三-O-乙酰基-β-D-呋喃核糖基)黑麦(7c)的 Vilsmeier-Haack 反应,然后依次用硼氢化钠还原和催化氢解,得到了 7-甲基衍生物 12c,该衍生物经脱保护后得到了标题化合物 12a。通过直接氢解 7-甲酰基衍生物 8c,特别是使用珀尔曼催化剂,可以更有效地生成化合物 12c。对 1-苄基-7-甲酰基黑麦草碱(14)进行类似处理后,可以更好地合成 7-甲基黑麦草碱(1b),这种荧光碱是从古细菌转移核糖核酸中分离出来的。化合物 12a 被证明对糖基键的酸性解非常敏感,在 25°C 的 0.1N 盐酸中测定的速率与 3-β-D-ribofuranosylwye (7a) 几乎相同。
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