Triterpene saponins fromThalictrum minus. V. Structure of thalicoside B

The epigeal part ofThalictrum minus L. has yielded a new bidesmoside — thalicoside B — which has the structure of oleanolic acid 28-O--D-glucopyranoside 3-O-[O--L-rhamnopyranosyl-(1 2)-O--D-glucopyranosyl-(1 3)--L-arabinopyranoside].Irkutsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR; A. A. Zhdanov Irkutsk State University; and Pacific Ocean Institute of Bioorganic Chemistry, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 670–676, September–October, 1985.     

Triterpene saponins fromThalictrum minus. VIII. Structure of thalicoside D

Thalicoside D — a new triterpene glycoside isolated fromThalictrum minus L. (Ranunculaceae) — has the structure of oleanolic acid 3-O-[O--L-rhamnopyranosyl-(12)-O--D-glucopyranosyl-(14)--L-arabinopyranoside 28-O-[O--D-glucopyranosyl-(16)--D-glucopyranoside]. This structure was established by the use of the results of acid and alkaline hydrolyses, SIMS spectra, and one- and two-dimensional NMR spectroscopy.Deceased.Irkutsk Institute of Organic Chemistry, Siberian Division, Russian Academy of Sciences. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan [IKhRV AN RUz], Tashkent, FAX (3712) 62 73 48. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 398–403, May–June, 1994.     

Alkaloids ofNitraria komarovii. IV. Total synthesis of komarovine and komarovidine

Two alkaloids of a new type — komarovine and komarovidine — have been isolated from the epigeal part of theNitraria komarovii. Their structures — 3-(quinolin-8'-yl)--carboline and 3-(quinolin-8'-yl)-5,6-dihydro--carboline, respectively — have been established by synthesis.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 192–195, March–April, 1981.     

Triterpene glycosides of Gypsophylla trichotoma II. The structure of trichoside A

Summary The structure of trichoside A — a gypsogenin trioside fromGypsophylla trichotoma Wend. — has been established. The O-glycosidic moiety is the O--D-glucopyranosyl-(1 3)-O--D-glucopyranoside grouping and the O-acyl moiety is D-galactose.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodynkh Soedinenii, Vol. 7, No. 2, pp. 151–153, March, 1971.     

Triterpene glycosides of alfalfa VIII. Medinoside E from the leaves

From the leaves ofMedicago sativa L. (Leguminosae) we have isolated the glycoside soyasapogenol B — medinoside E. Medinoside E has the structure of olean-12-ene-3,22,24-triol 3-O-[O--L-rhamnopyranosyl-(12)-O--D-galactopyranosyl-(12)-O--D-glucopyranosyl-(12)--D-glucopyranuronoside].Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan Tashkent. Institute of Organic Chemistry, Russian Academy of Sciences, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 705–710, September–October, 1993.     

Phytoecdysones ofRhaponticum integrifolium III. Integristerone B

Summary From the flower heads ofRhaponticum integrifolium we have isolated a new phytoecdysone — integristerone B. It has been shown that it is 1, 2, 3, 5, 14, 20R, 22R, 25-octahydroxy-5-cholest-7-en-6-one.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 457–463, July–August, 1978.     

Triterpene glycosides of Astragalus and their genins XXX. Cycloaraloside A from Astragalus amarus

In addition to -sitosterol, cyclosieversigenin, and -sitosterol -D-glucopyranoside, the roots of the plantAstragalus amarus Pall. (Leguminosae) have yielded a new triterpene glycoside of the cycloartane series — cycloaraloside A, which has the structure of 2OR,24S-epoxycycloartane-3,6,16,25-tetraol 3-O--D-glucopyranoside.Institute of the Chemistry of Plant Substances, Uzbek SSR Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 806–809, November–December, 1989.     

The structure of xanthoceras saponin

Summary It has been established that xanthoceras saponin is O--arabopyranosyl-(1 4)-[O--galactopyranosyl-(1 6)-O--glucopyranosyl-(1 3)]-O--glucuronopyranosyl-(1 3)-gypsogenin.Institute of Chemistry, Academy of Sciences of the Moldavian SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 442–444, July–August, 1971.     

A chemical study of plants of the Mongolian flora lariside — A new scopoletin glycoside fromSalsola laricifolia

A new coumarin glycoside lariside — C₂₁H₂₆O₁₃, mp 155–156°C (from methanol) — has been isolated from the epigeal part ofSalsola laricifolia Turcz. et Litw. On the basis of acid hydrolysis and spectral characteristics the structure of lariside has been established as 7-[O--D-apiofuranosyl-(1 2)--D-glucopyranosyloxy]-6-methoxy-2H-1-benzopyran-2-one.Institute of Chemistry, Academy of Sciences of the Mongolian Peoples' Republic, Ultan-Bator. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 288–291, May–June, 1986.     

Triterpene glycosides of Dianthus deltoides. I

Summary FromDianthus deltoides L. we have isolated three new triterpene glycosides: dianthosides A, B, and C. It has been shown that dianthoside A is the 3-O--glucopyranoside and dianthoside B the 3-O-[O--D-glucopyranosyl-(1 6)--glucopyranoside] of gypsogenic acid. Some information on the structure of dianthoside C — a new glycoside of gypsogenin — has been obtained.A. E. Arbuzov Institute of Organic and Physical Chemistry, Academy of Sciences of the USSR. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 33–38, January, 1971.     

Withasteroids ofPhysalis. V. A study of the1H and13C NMR spectra of the withasteroids visconolide and 28-hydroxywithaperuvin C

The PMR and¹³C NMR spectra of new withasteroids — visconolide and 28-hydroxywithaperuvin C, isolated fromPhysalis viscosa L. — have been investigated. A detailed analysis of the spectral characteristics obtained is given. For visconolide is proposed the structure of 4,12,17,28-pentahydroxy-1-oxo-5, 6-epoxy-22R-witha-2,24-dienolide, and for 28-hydroxywithaperuvin C that of 6,14,17,20R, 28-pentahydroxy-l-oxo-22R-witha-2, 4, 24-trienolide.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 657–663, September–October, 1985.     

Triterpene glycosides of alfalfa. IV. Medicoside J

A new triterpene glycoside has been isolated from the roots ofMedicago sativa L. (family Fabaceae) — medicoside J, and its structure has been established as a medicagenic acid 3-O--D-glucopyranoside 28-O-[O--D-xylopyranosyl-(1 4)-O--L-rhamnopyranosyl-(1 2)--L-arabinopyranoside].Institute of the Chemistry of Plant Substances of the Uzbek Academy of Sciences. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 610–613, September–December, 1986.     

Triterpene glycosides of Astragalus and of their genins. X. Cyclogalegigenin from Astragalus galegiformis

The flowers of the plantAstragalus galegiformis L. have yielded a new isoprenoid — cyclogalegigenin — the structure of which has been established on the basis of chemical transformations and spectral characteristics as 20R,24S-epoxycycloartane-3,6,16,25-tetraol.I. G. Kutateladze Institute of Pharmacochemistry, Academy of Sciences of the Georgian SSR, Tbilisi. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 332–339, May–June, 1983.     

Triterpene glycosides ofAstragalus and their genins. VIII. Askendoside C fromAstragalus taschkendicus

A new glycoside of the cycloartane series — askendoside C — has been isolated from the roots of the plantAstragalus taschkendicus Bge., and its structure has been established on the basis of chemical transformations and spectral characteristics as 24R-cycloartane-3,6,16,24,25-pentaol 3-[0--L-arabinopyranosyl-(12)--D-xylopyranoside].Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 173–180, March–April, 1983.     

Alkaloids of far-eastern species ofThalictrum. IV

Summary The alkaloid composition of four far-eastern species ofThalictrum — Th. amurense, Th. contortum, Th. filamentosum, andTh. minus — have been studied, for the first time in the case of the first three species.Th. amurense contains -allocryptopine and thalictrisine, andTh. contortum contains -allocryptopine. Glaucine and thalicsimidine have been found inTh. filamentosum, and argemonine has been isolated fromTh. minus for the first time.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Pacific Ocean Institute of Bioorganic Chemistry, Far-Eastern Scientific Center of the Academy of Sciences of the USSR, Vladivostok. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 788–791, November–December, 1976.     

Tripenoid glycosides of alfalfa. VII. Medicosides E and F

Two hederagenin glycosides — medicosides E and F — have been isolated from the roots ofMedicago sativa L. (Leguminosae). Medicoside E has the structure of hederagenin 28-O--D-glucopyranoside 3-O-[O--G-glucopyranosyl-(13)--D-xylopyranoside]. Medicoside F has the structure of hederagenin 28-O--D-glucopyranoside 3-O-[O--D-glucopyranosyl-(12)--L-arabinopyranoside].Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent. Institute of Organic Chemistry, Russian Academy of Sciences, Moscow. Translated from Khimiya Prirodnykh Soedinenii. No. 5, pp. 701–705, September–October, 1993.     

Triterpene glycosides and their genins from Thalictrum foetidum. III. The structure of cyclofoetoside A

A new glycoside of the cycloartane series — cyclofoetoside A — has been isolated from the epigeal part ofThalictrum foetidum L., and its structure has been established on the basis of chemical transformations and spectral characteristics as 24S-cycloartane-3,16,24,25-tetraol 3-0--L-arabinopyranoside 16-0-[0--L-rhamnopyranosyl-(16)--D-glucopyranoside].Pyatigorsk Institute of Organic Chemistry, Siberian Branch, Academy of Sciences of the USSR; Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 66–71, January–February, 1986.     

Alkaloids of Aconitum kirinense. Structure of akirine

The known alkaloid lepenine and the new diterpene alkaloid akirine have been isolated from the epigeal part ofAconitum kirinense Nakai. To establish the structure of akirine, its spectral characteristics have been studied and an x-ray structural analysis has been made. It is 1,8-dihydroxy-16-methoxy-9,14-methylenedioxy-3,4-epoxy-N-ethylaconitane — the first diterpene alkaloid with a lycoctonine skeleton containing a 9,14-methylenedioxy group and a -oriented substituent at C14.Institute of Chemistry of Plant Substances, Uzbekistan Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 534–538, September–October, 1992.